best-of-scala

🏆 A ranked list of awesome Scala open-source libraries & tools. Updated weekly.

This curated list contains 380 awesome open-source projects with a total of 370K stars grouped into 23 categories. All projects are ranked by a project-quality score, which is calculated based on various metrics automatically collected from GitHub and different package managers. If you like to add or update projects, feel free to open an issue, submit a pull request, or directly edit the projects.yaml. Contributions are very welcome!

🧙‍♂️ Discover other best-of lists or create your own.

Miscellaneous 51 projects
Development Cycle 15 projects
Database Clients 42 projects
Ecosystems 1 projects
JSON 17 projects
Web Frameworks 17 projects
File processing 6 projects
SBT Plugins 36 projects
Toolkits, extensions & ecosystems 35 projects
Media processing 7 projects
Dependency injection 8 projects
HTTP 16 projects
Libraries and frameworks for various types of code testing 17 projects
Libraries for security, authentication, and cryptography 12 projects
Data handling 14 projects
Parsers 6 projects
Reactive programming 11 projects
Development environment 9 projects
Templating engines 5 projects
Business intelligence 26 projects
Big data 13 projects
Distributed 10 projects
ScalaJS 7 projects

Explanation

🥇🥈🥉 Combined project-quality score
⭐️ Star count from GitHub
🐣 New project (less than 6 months old)
💤 Inactive project (9 months no activity)
💀 Dead project (18 months no activity)
📈📉 Project is trending up or down
➕ Project was recently added
❗️ Warning (e.g. missing/risky license)
👨‍💻 Contributors count from GitHub
🔀 Fork count from GitHub
📋 Issue count from GitHub
⏱️ Last update timestamp on package manager
📥 Download count from package manager
📦 Number of dependent projects
Libraries compatible with ZIO
Libraries spawned from or a part of PlayFramework
Projects compatible with Scala.js

Miscellaneous

Miscellaneous projects that currently don't fit into any other category.

eclair (🥇26 · ⭐ 1.1K) - A scala implementation of the Lightning Network. Apache-2

GitHub (👨‍💻 48 · 🔀 250 · 📥 43K · 📋 710 - 6% open · ⏱️ 27.07.2023):
```
 git clone https://github.com/acinq/eclair
```

sangria (🥇24 · ⭐ 1.9K) - Scala GraphQL implementation. Apache-2

GitHub (👨‍💻 64 · 🔀 220 · 📋 460 - 12% open · ⏱️ 08.07.2023):
```
 git clone https://github.com/sangria-graphql/sangria
```

pureconfig (🥇21 · ⭐ 1.4K) - A boilerplate-free library for loading configuration files. MPL-2.0

GitHub (👨‍💻 85 · 🔀 170 · 📋 290 - 15% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/pureconfig/pureconfig
```

play-swagger (🥇21 · ⭐ 400) - Swagger spec generator for play framework. Apache-2

GitHub (👨‍💻 54 · 🔀 130 · 📋 250 - 35% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/iheartradio/play-swagger
```

bootzooka (🥇20 · ⭐ 690) - Simple project to quickly start developing a Scala-based.. Apache-2

GitHub (👨‍💻 63 · 🔀 150 · 📋 110 - 6% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/softwaremill/bootzooka
```

scallop (🥈18 · ⭐ 660 · 📈) - a simple Scala CLI parsing library. MIT

GitHub (👨‍💻 24 · 🔀 55 · 📋 190 - 3% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/scallop/scallop
```

metrics-scala (🥈18 · ⭐ 430) - The scala API for Dropwizards Metrics. Apache-2

GitHub (👨‍💻 89 · 🔀 61 · 📋 73 - 2% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/erikvanoosten/metrics-scala
```

fs2-aws (🥈18 · ⭐ 170) - fs2 utilities to interact with AWS. MIT

GitHub (👨‍💻 24 · 🔀 40 · 📋 68 - 39% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/laserdisc-io/fs2-aws
```

scala-scraper (🥈17 · ⭐ 700) - A Scala library for scraping content from HTML pages. MIT

GitHub (👨‍💻 15 · 🔀 100 · 📋 61 - 13% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/ruippeixotog/scala-scraper
```

cilib (🥈16 · ⭐ 120 · 💤) - Typesafe, purely functional Computational Intelligence. Apache-2

GitHub (👨‍💻 26 · 🔀 100 · 📋 65 - 16% open · ⏱️ 05.08.2022):
```
 git clone https://github.com/ciren/cilib
```

skuber (🥈16 · ⭐ 70) - A Scala Kubernetes client library. Apache-2

GitHub (👨‍💻 61 · 🔀 47 · 📋 41 - 48% open · ⏱️ 17.07.2023):
```
 git clone https://github.com/hagay3/skuber
```

decline (🥈15 · ⭐ 600) - A composable command-line parser for Scala. Apache-2

GitHub (👨‍💻 34 · 🔀 61 · 📋 86 - 31% open · ⏱️ 11.06.2023):
```
 git clone https://github.com/bkirwi/decline
```

pprint (🥈14 · ⭐ 200) - Pretty-printing value, types and type-signatures in Scala. MIT

GitHub (👨‍💻 18 · 🔀 34 · 📋 34 - 38% open · ⏱️ 07.06.2023):
```
 git clone https://github.com/com-lihaoyi/pprint
```

rtree2d (🥈13 · ⭐ 130) - RTree2D is a 2D immutable R-tree for ultra-fast nearest and.. Apache-2

GitHub (👨‍💻 6 · 🔀 11 · 📋 18 - 44% open · ⏱️ 26.07.2023):
```
 git clone https://github.com/plokhotnyuk/rtree2d
```

franklin (🥈13 · ⭐ 69) - A STAC/OGC API Features Web Service. Apache-2

GitHub (👨‍💻 12 · 🔀 18 · 📋 200 - 48% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/azavea/franklin
```

osm4scala (🥉12 · ⭐ 72 · 💤) - Scala and Spark library focused on reading OpenStreetMap Pbf files. MIT

GitHub (👨‍💻 4 · 🔀 15 · 📥 42 · 📋 71 - 33% open · ⏱️ 08.09.2022):
```
 git clone https://github.com/simplexspatial/osm4scala
```

scowl (🥉12 · ⭐ 53 · 💤) - A Scala DSL for programming with the OWL API. MIT

GitHub (👨‍💻 3 · 🔀 9 · 📋 12 - 66% open · ⏱️ 30.03.2022):
```
 git clone https://github.com/phenoscape/scowl
```

stac4s (🥉12 · ⭐ 15) - a scala library with primitives to build applications using the.. Apache-2

GitHub (👨‍💻 14 · 🔀 9 · 📋 51 - 39% open · ⏱️ 13.03.2023):
```
 git clone https://github.com/stac-utils/stac4s
```

scountries (🥉11 · ⭐ 20) - Scala library that provides an enumeration of ISO 3166 codes for.. Apache-2

GitHub (👨‍💻 5 · 🔀 1 · ⏱️ 30.07.2023):

 git clone https://github.com/lambdaworks/scountries

Maven (⏱️ 24.04.2023):

 <dependency>
 	<groupId>io.lambdaworks</groupId>
 	<artifactId>scountries_3</artifactId>
 	<version>[VERSION]</version>
 </dependency>

scurl-detector (🥉11 · ⭐ 17) - Scala library that detects and extracts URLs from text. Apache-2

GitHub (👨‍💻 7 · 🔀 2 · 📋 10 - 10% open · ⏱️ 30.07.2023):
```
 git clone https://github.com/lambdaworks/scurl-detector
```

Maven (⏱️ 24.04.2023):

 <dependency>
 	<groupId>io.lambdaworks</groupId>
 	<artifactId>scurl-detector_3</artifactId>
 	<version>[VERSION]</version>
 </dependency>

figlet4s (🥉8 · ⭐ 36) - ASCII-art banners in Scala. MIT

GitHub (👨‍💻 1 · 📋 21 - 57% open · ⏱️ 08.11.2022):
```
 git clone https://github.com/colofabrix/figlet4s
```

spliff (🥉7 · ⭐ 44 · 💤) - Efficient diffing in Scala. MPL-2.0

GitHub (👨‍💻 2 · 🔀 1 · ⏱️ 17.05.2022):

 git clone https://github.com/sirthias/spliff

mailgun4s (🥉7 · ⭐ 18) - Mailgun API implementation in Scala. MIT

GitHub (👨‍💻 6 · 🔀 7 · ⏱️ 18.06.2023):
```
 git clone https://github.com/outr/mailgun4s
```

Show 28 hidden projects...

geotrellis (🥇19 · ⭐ 1.3K) - GeoTrellis is a geographic data processing engine for high.. ❗Unlicensed
scopt (🥈16 · ⭐ 1.4K) - command line options parsing for Scala. ❗Unlicensed
scalafx (🥈15 · ⭐ 640) - ScalaFX simplifies creation of JavaFX-based user interfaces in.. ❗Unlicensed
sbt-android (🥈14 · ⭐ 740 · 💀) - An easy-to-use sbt plugin for working with all Android.. ❗Unlicensed
banana-rdf (🥈14 · ⭐ 290 · 💀) - Banana RDF. ❗Unlicensed
scaloid (🥈13 · ⭐ 2.1K · 💀) - Scaloid makes your Android code easy to understand and.. ❗Unlicensed
op-rabbit (🥈13 · ⭐ 240 · 💀) - The Opinionated RabbitMQ Library for Scala and Akka. ❗Unlicensed
fansi (🥈13 · ⭐ 220) - Scala/Scala.js library for manipulating Fancy Ansi colored strings. ❗Unlicensed
akka-quartz-scheduler (🥉12 · ⭐ 560 · 💤) - Quartz Extension and utilities for cron-style.. ❗Unlicensed
scala-stm (🥉12 · ⭐ 250 · 💀) - A library-based Software Transactional Memory (STM) for Scala,.. BSD-3
scala-ssh (🥉12 · ⭐ 230 · 💀) - Remote shell access via SSH for your Scala applications. Apache-2
managerial (🥉12 · ⭐ 13) - A zero-dependency Scala library for managing resources monadically. Apache-2
mainargs (🥉11 · ⭐ 160) - A small, convenient, dependency-free library for command-line.. ❗Unlicensed
scalafiddle-editor (🥉11 · ⭐ 99 · 💀) - Web user interface for ScalaFiddle. Apache-2
aptus-core (🥉11 · ⭐ 5) - A utility library aiming to simplify the Scala coding experience. Apache-2
replesent (🥉10 · ⭐ 400 · 💀) - A neat little tool to build presentations using the Scala REPL. Apache-2
miniboxing-plugin (🥉10 · ⭐ 120 · 💀) - Miniboxing is a program transformation that improves.. ❗Unlicensed
clist (🥉8 · ⭐ 110 · 💀) - Command Line Interface Scala Toolkit. Apache-2
xs4s (🥉8 · ⭐ 57 · 💀) - XML Streaming for Scala including FS2/cats support. ❗Unlicensed
ostinato (🥉8 · ⭐ 50 · 💀) - A chess library that runs on the server (Scala) and on the browser.. MIT
scaposer (🥉8 · ⭐ 38 · 💀) - GNU Gettext .po file loader for Scala. MIT
scala-xgettext (🥉8 · ⭐ 25 · 💀) - Scala compiler plugin that acts like GNU xgettext command to.. MIT
aws4s (🥉7 · ⭐ 88 · 💀) - Non-blocking AWS SDK for Scala exposing strongly-typed APIs built on top.. MIT
sfcurve (🥉7 · ⭐ 80) - LocationTech SFCurve is a Scala library for the creation,.. ❗Unlicensed
google-api-scala (🥉7 · ⭐ 18 · 💀) - This API is a wrapper for the google java libraries... Apache-2
service-chassis (🥉5 · ⭐ 7 · 💤) - A scala chassis to get your applications and services.. ❗Unlicensed
sevenz4s (🥉4 · ⭐ 43 · 💀) - SevenZip library for Scala, easy to use. ❗️LGPL-2.1
google4s (🥉3 · ⭐ 11 · 💀) - A lean, functional library for Google Cloud Services in Scala. ❗Unlicensed

Development Cycle

Tools for compiling, testing, packaging, formatting, linting, ... your Scala code

sbt (🥇33 · ⭐ 4.7K) - sbt, the interactive build tool. Apache-2

GitHub (👨‍💻 400 · 🔀 920 · 📥 11M · 📋 4.1K - 18% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/sbt/sbt
```

gitbucket (🥇31 · ⭐ 8.9K · 📉) - A Git platform powered by Scala with easy installation, high.. Apache-2

GitHub (👨‍💻 200 · 🔀 1.2K · 📥 750K · 📋 1.8K - 18% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/gitbucket/gitbucket
```

mill (🥈29 · ⭐ 1.9K) - Your shiny new Java/Scala build tool!. MIT

GitHub (👨‍💻 200 · 🔀 280 · 📥 1.1M · 📋 750 - 14% open · ⏱️ 02.08.2023):
```
 git clone https://github.com/com-lihaoyi/mill
```

scala-cli (🥈27 · ⭐ 420) - Scala CLI is a command-line tool to interact with the Scala.. Apache-2

GitHub (👨‍💻 64 · 🔀 86 · 📥 480K · 📋 660 - 29% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/VirtusLab/scala-cli
```

metals (🥈26 · ⭐ 1.9K) - Scala language server with rich IDE features. Apache-2

GitHub (👨‍💻 170 · 🔀 290 · 📥 29 · 📋 1.6K - 15% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/scalameta/metals
```

bloop (🥈26 · ⭐ 850) - Bloop is a build server and CLI tool to compile, test and run Scala fast.. Apache-2

GitHub (👨‍💻 140 · 🔀 190 · 📥 160K · 📋 710 - 17% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/scalacenter/bloop
```

giter8 (🥉23 · ⭐ 1.7K) - a command line tool to apply templates defined on GitHub. Apache-2

GitHub (👨‍💻 82 · 🔀 230 · 📋 270 - 16% open · ⏱️ 30.07.2023):
```
 git clone https://github.com/foundweekends/giter8
```

scalafix (🥉22 · ⭐ 760) - Refactoring and linting tool for Scala. BSD-3

GitHub (👨‍💻 100 · 🔀 170 · 📥 35 · 📋 650 - 10% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/scalacenter/scalafix
```

wartremover (🥉21 · ⭐ 1K) - Flexible Scala code linting tool. Apache-2

GitHub (👨‍💻 58 · 🔀 110 · 📥 490 · 📋 330 - 29% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/wartremover/wartremover
```

scapegoat (🥉20 · ⭐ 490) - Scala compiler plugin for static code analysis. Apache-2

GitHub (👨‍💻 63 · 🔀 80 · 📋 240 - 17% open · ⏱️ 29.07.2023):
```
 git clone https://github.com/scapegoat-scala/scapegoat
```

bleep (🥉15 · ⭐ 110) - A bleeping fast scala build tool!. MIT

GitHub (👨‍💻 12 · 🔀 16 · 📥 2.9K · 📋 83 - 49% open · ⏱️ 27.07.2023):
```
 git clone https://github.com/oyvindberg/bleep
```

Show 4 hidden projects...

scalariform (🥉18 · ⭐ 530 · 💀) - Scala source code formatter. MIT
scalastyle (🥉16 · ⭐ 680 · 💀) - scalastyle. Apache-2
fury (🥉12 · ⭐ 11) - A build tool for Scala. Apache-2
codacy-scalameta (🥉7 · ⭐ 35 · 💤) - Codacy tool for Scalameta. ❗Unlicensed

Database Clients

Libraries for connecting to, operating, and querying databases.

doobie (🥇25 · ⭐ 2.1K) - Functional JDBC layer for Scala. MIT

GitHub (👨‍💻 160 · 🔀 340 · 📋 530 - 27% open · ⏱️ 02.08.2023):
```
 git clone https://github.com/tpolecat/doobie
```

elastic4s (🥇25 · ⭐ 1.6K) - Elasticsearch Scala Client - Reactive, Non Blocking, Type Safe,.. Apache-2

GitHub (👨‍💻 400 · 🔀 690 · 📋 1.1K - 1% open · ⏱️ 08.07.2023):
```
 git clone https://github.com/sksamuel/elastic4s
```

Maven:

 <dependency>
 	<groupId>com.sksamuel.elastic4s</groupId>
 	<artifactId>elastic4s_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

slick (🥇24 · ⭐ 2.6K) - Slick (Scala Language Integrated Connection Kit) is a modern database.. BSD-2

GitHub (👨‍💻 200 · 🔀 620 · 📋 1.4K - 30% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/slick/slick
```

quill (🥇23 · ⭐ 2.1K) - Compile-time Language Integrated Queries for Scala. Apache-2

GitHub (👨‍💻 140 · 🔀 350 · 📋 1.1K - 32% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/zio/zio-quill
```

scalikejdbc (🥇23 · ⭐ 1.2K · 📉) - A tidy SQL-based DB access library for Scala developers... Apache-2

GitHub (👨‍💻 100 · 🔀 220 · 📋 480 - 5% open · ⏱️ 30.07.2023):
```
 git clone https://github.com/scalikejdbc/scalikejdbc
```

Maven (📦 7 · ⏱️ 31.10.2021):

 <dependency>
 	<groupId>org.scalikejdbc</groupId>
 	<artifactId>scalikejdbc_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

skunk (🥈22 · ⭐ 1.5K) - A data access library for Scala + Postgres. MIT

GitHub (👨‍💻 67 · 🔀 140 · 📋 160 - 62% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/typelevel/skunk
```

ReactiveMongo (🥈20 · ⭐ 840) - Non-blocking, Reactive MongoDB Driver for Scala. Apache-2

GitHub (👨‍💻 87 · 🔀 230 · 📋 380 - 4% open · ⏱️ 31.07.2023):
```
 git clone https://github.com/ReactiveMongo/ReactiveMongo
```

slick-pg (🥈20 · ⭐ 830) - Slick extensions for PostgreSQL. BSD-2

GitHub (👨‍💻 93 · 🔀 180 · 📋 380 - 29% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/tminglei/slick-pg
```

scanamo (🥈20 · ⭐ 320) - Simpler DynamoDB access for Scala. Apache-2

GitHub (👨‍💻 83 · 🔀 120 · 📋 230 - 32% open · ⏱️ 09.06.2023):
```
 git clone https://github.com/scanamo/scanamo
```

neotypes (🥈19 · ⭐ 150) - Scala lightweight, type-safe, asynchronous driver for neo4j. MIT

GitHub (👨‍💻 14 · 🔀 31 · 📋 64 - 26% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/neotypes/neotypes
```

couchbase-jvm-clients (🥈18 · ⭐ 39) - The Couchbase Monorepo for JVM Clients: Java, Scala,.. Apache-2

GitHub (👨‍💻 21 · 🔀 35 · 📦 140 · ⏱️ 04.08.2023):

 git clone https://github.com/couchbase/couchbase-jvm-clients

anorm (🥈17 · ⭐ 230) - The Anorm database library. Apache-2

GitHub (👨‍💻 54 · 🔀 69 · 📋 67 - 10% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/playframework/anorm
```

zio-redis (🥈17 · ⭐ 110) - A ZIO-based redis client. Apache-2

GitHub (👨‍💻 37 · 🔀 59 · 📋 130 - 15% open · ⏱️ 27.07.2023):
```
 git clone https://github.com/zio/zio-redis
```

squeryl (🥈16 · ⭐ 580) - A Scala DSL for talking with databases with minimum verbosity and.. Apache-2

GitHub (👨‍💻 60 · 🔀 140 · 📋 150 - 26% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/squeryl/squeryl
```

pulsar4s (🥈16 · ⭐ 220) - Idiomatic, typesafe, and reactive Scala client for Apache Pulsar. Apache-2

GitHub (👨‍💻 23 · 🔀 42 · 📋 63 - 33% open · ⏱️ 08.01.2023):
```
 git clone https://github.com/CleverCloud/pulsar4s
```

zio-elasticsearch (🥈16 · ⭐ 52) - ZIO Elasticsearch is a type-safe and streaming-.. Apache-2

GitHub (👨‍💻 17 · 🔀 15 · 📋 43 - 25% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/lambdaworks/zio-elasticsearch
```

Maven (⏱️ 21.04.2023):

 <dependency>
 	<groupId>io.lambdaworks</groupId>
 	<artifactId>zio-elasticsearch_3</artifactId>
 	<version>[VERSION]</version>
 </dependency>

relate (🥉14 · ⭐ 160) - Performant database access in Scala. Apache-2

GitHub (👨‍💻 18 · 🔀 17 · 📥 1.6K · 📋 24 - 50% open · ⏱️ 08.06.2023):
```
 git clone https://github.com/lucidsoftware/relate
```

laserdisc (🥉13 · ⭐ 90) - A Future-free Fs2 native pure FP Redis client. MIT

GitHub (👨‍💻 11 · 🔀 14 · 📋 25 - 56% open · ⏱️ 30.07.2023):
```
 git clone https://github.com/laserdisc-io/laserdisc
```

clickhouse-scala-client (🥉12 · ⭐ 110) - Clickhouse Scala Client with Reactive Streams support. ❗️LGPL-3.0

GitHub (👨‍💻 16 · 🔀 20 · 📋 33 - 39% open · ⏱️ 17.07.2023):
```
 git clone https://github.com/crobox/clickhouse-scala-client
```

akka-persistence-gcp-datastore (🥉9 · ⭐ 20 · 💤) - akka-persistence-gcp-datastore is a journal and.. Apache-2

GitHub (👨‍💻 4 · 🔀 3 · ⏱️ 15.03.2022):

 git clone https://github.com/innFactory/akka-persistence-gcp-datastore

etcd4s (🥉8 · ⭐ 31 · 💤) - Scala etcd client implementing V3 APIs. MIT

GitHub (👨‍💻 4 · 🔀 4 · 📋 4 - 75% open · ⏱️ 07.03.2022):
```
 git clone https://github.com/mingchuno/etcd4s
```

Show 21 hidden projects...

phantom (🥈19 · ⭐ 1K · 💀) - Schema safe, type-safe, reactive Scala driver for.. Apache-2
rediscala (🥈17 · ⭐ 790 · 💀) - Non-blocking, Reactive Redis driver for Scala (with Sentinel.. Apache-2
scala-activerecord (🥉15 · ⭐ 320 · 💀) - ActiveRecord-like ORM library for Scala. MIT
scala-redis (🥉14 · ⭐ 1K · 💀) - A scala library for connecting to a redis server, or a.. ❗Unlicensed
casbah (🥉14 · ⭐ 530 · 💀) - Casbah is now officially end-of-life (EOL). ❗Unlicensed
finagle-postgres (🥉14 · ⭐ 83 · 💀) - PostgreSQL protocol support for Finagle. Apache-2
scredis (🥉13 · ⭐ 150 · 💀) - Non-blocking, ultra-fast Scala Redis client built on top of Akka.. Apache-2
scruid (🥉13 · ⭐ 110 · 💀) - Scala + Druid: Scruid. A library that allows you to compose.. Apache-2
salat (🥉12 · ⭐ 490 · 💀) - Salat is a simple serialization library for case classes. ❗Unlicensed
scala-forklift (🥉11 · ⭐ 190 · 💀) - Type-safe data migration tool for Slick, Git and.. ❗Unlicensed
couchdb-scala (🥉11 · ⭐ 65 · 💀) - A purely functional Scala client for CouchDB. Apache-2
longevity (🥉10 · ⭐ 100 · 💀) - A Persistence Framework for Scala and NoSQL. ❗Unlicensed
lucene4s (🥉9 · ⭐ 53 · 💀) - Light-weight convenience wrapper around Lucene to simplify complex.. MIT
ReactiveCouchbase-rs-core (🥉9 · ⭐ 26 · 💀) - New ReactiveCouchbase driver using reactive-streams. Apache-2
molecule (🥉9 · ⭐ 3 · 📈) - Molecule translates custom Scala code to database queries for.. Apache-2
shade (🥉8 · ⭐ 110 · 💀) - Memcached client for Scala. MIT
morpheus (🥉8 · ⭐ 100 · 💀) - Reactive type-safe Scala driver for SQL databases. ❗Unlicensed
scalarelational (🥉8 · ⭐ 58 · 💀) - Type-Safe framework for defining, modifying, and.. ❗Unlicensed
mapperdao (🥉7 · ⭐ 14 · 💀) - A Scala ORM library. ❗Unlicensed
scala-sql (🥉6 · ⭐ 89) - scala SQL api. ❗Unlicensed
kvs (🥉6 · ⭐ 20 · 💤) - Highly available distributed strong eventual consistent and.. ❗Unlicensed

Ecosystems

Extensions and platforms that provide various abstractions.

zio (🥇31 · ⭐ 3.8K) - ZIO A type-safe, composable library for async and concurrent programming.. Apache-2

GitHub (👨‍💻 670 · 🔀 1.2K · 📋 2.4K - 15% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/zio/zio
```

Maven (📦 820 · ⏱️ 06.06.2023):

 <dependency>
 	<groupId>dev.zio</groupId>
 	<artifactId>zio_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

JSON

Libraries that handle JSON format.

circe (🥇28 · ⭐ 2.4K) - Yet another JSON library for Scala. Apache-2

GitHub (👨‍💻 270 · 🔀 530 · 📋 600 - 32% open · ⏱️ 02.08.2023):
```
 git clone https://github.com/circe/circe
```

Maven (📦 280 · ⏱️ 03.03.2023):

 <dependency>
 	<groupId>io.circe</groupId>
 	<artifactId>circe-core_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

argonaut (🥇22 · ⭐ 540) - Purely functional JSON parser and library in scala. BSD-3

GitHub (👨‍💻 59 · 🔀 110 · 📋 200 - 13% open · ⏱️ 31.07.2023):
```
 git clone https://github.com/argonaut-io/argonaut
```

Maven (📦 15 · ⏱️ 20.01.2022):

 <dependency>
 	<groupId>io.argonaut</groupId>
 	<artifactId>argonaut_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

json4s (🥈20 · ⭐ 1.5K) - JSON library. Apache-2

GitHub (👨‍💻 130 · 🔀 350 · 📋 420 - 39% open · ⏱️ 30.07.2023):
```
 git clone https://github.com/json4s/json4s
```

jsoniter-scala (🥈20 · ⭐ 660) - Scala macros for compile-time generation of safe and ultra-fast.. MIT

GitHub (👨‍💻 19 · 🔀 83 · 📦 1 · 📋 280 - 19% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/plokhotnyuk/jsoniter-scala
```

jawn (🥈20 · ⭐ 430) - Jawn is for parsing jay-sawn (JSON). MIT

GitHub (👨‍💻 48 · 🔀 71 · 📋 69 - 18% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/typelevel/jawn
```

zio-json (🥈19 · ⭐ 390) - Fast, secure JSON library with tight ZIO integration. Apache-2

GitHub (👨‍💻 54 · 🔀 120 · 📋 180 - 55% open · ⏱️ 03.07.2023):
```
 git clone https://github.com/zio/zio-json
```

play-json (🥈19 · ⭐ 350) - The Play JSON library. Apache-2

GitHub (👨‍💻 64 · 🔀 130 · 📋 120 - 36% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/playframework/play-json
```

jackson-module-scala (🥉18 · ⭐ 490) - Add-on module for Jackson.. Apache-2

GitHub (👨‍💻 59 · 🔀 140 · 📋 460 - 10% open · ⏱️ 26.07.2023):
```
 git clone https://github.com/FasterXML/jackson-module-scala
```

diffson (🥉17 · ⭐ 300) - A scala diff/patch library for Json. Apache-2

GitHub (👨‍💻 31 · 🔀 52 · 📋 53 - 18% open · ⏱️ 06.05.2023):
```
 git clone https://github.com/gnieh/diffson
```

borer (🥉13 · ⭐ 200) - Efficient CBOR and JSON (de)serialization in Scala. MPL-2.0

GitHub (👨‍💻 9 · 🔀 13 · 📋 110 - 7% open · ⏱️ 31.07.2023):
```
 git clone https://github.com/sirthias/borer
```

ninny-json (🥉11 · ⭐ 21) - JSON typeclasses that know the difference between null and absent.. Unlicense

GitHub (👨‍💻 3 · 🔀 5 · 📋 11 - 63% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/nrktkt/ninny-json
```

ScalaJack (🥉10 · ⭐ 110) - Fast JSON parser/generator for Scala. MIT

GitHub (👨‍💻 13 · 🔀 8 · 📋 51 - 3% open · ⏱️ 15.11.2022):
```
 git clone https://github.com/gzoller/ScalaJack
```

Show 5 hidden projects...

spray-json (🥈21 · ⭐ 2.5K · 💀) - A lightweight, clean and simple JSON implementation in Scala. Apache-2
scala-jsonapi (🥉11 · ⭐ 110 · 💀) - Scala support library for integrating the JSON API spec with.. MIT
pushka (🥉10 · ⭐ 81 · 💀) - ABANDONED Pure Scala serialization library with annotations. Apache-2
sbt-json (🥉7 · ⭐ 32 · 💀) - sbt plugin that generates Scala case classes for easy, statically typed.. MIT
json (🥉3 · ⭐ 11 · 💀) - Persist-Json, a Fast Json Parser Written in Scala. ❗Unlicensed

Web Frameworks

playframework (🥇32 · ⭐ 12K) - Play Framework. Apache-2

GitHub (👨‍💻 960 · 🔀 4.1K · 📋 3.7K - 12% open · ⏱️ 21.07.2023):
```
 git clone https://github.com/playframework/playframework
```

Maven (📦 20 · ⏱️ 05.06.2023):

 <dependency>
 	<groupId>com.typesafe.play</groupId>
 	<artifactId>play_3</artifactId>
 	<version>[VERSION]</version>
 </dependency>

framework (🥇21 · ⭐ 1.3K) - Lift Framework. Apache-2

GitHub (👨‍💻 120 · 🔀 280 · 📋 1.5K - 9% open · ⏱️ 11.04.2023):
```
 git clone https://github.com/lift/framework
```

finatra (🥈20 · ⭐ 2.3K) - Fast, testable, Scala services built on TwitterServer and Finagle. Apache-2

GitHub (👨‍💻 250 · 🔀 420 · 📋 320 - 3% open · ⏱️ 09.05.2023):
```
 git clone https://github.com/twitter/finatra
```

Binding.scala (🥈20 · ⭐ 1.6K) - Reactive data-binding for Scala. MIT

GitHub (👨‍💻 25 · 🔀 110 · 📋 110 - 40% open · ⏱️ 11.07.2023):
```
 git clone https://github.com/ThoughtWorksInc/Binding.scala
```

korolev (🥈19 · ⭐ 580) - Single Page Applications running on the server side. Apache-2

GitHub (👨‍💻 26 · 🔀 50 · 📋 240 - 5% open · ⏱️ 02.08.2023):
```
 git clone https://github.com/fomkin/korolev
```

udash-core (🥈19 · ⭐ 440) - Scala framework for building beautiful and maintainable web.. Apache-2

GitHub (👨‍💻 37 · 🔀 36 · 📋 120 - 25% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/UdashFramework/udash-core
```

skinny-framework (🥉18 · ⭐ 740) - Scala on Rails - A full-stack web app framework for rapid.. MIT

GitHub (👨‍💻 32 · 🔀 73 · 📥 12K · 📋 150 - 12% open · ⏱️ 14.12.2022):
```
 git clone https://github.com/skinny-framework/skinny-framework
```

unfiltered (🥉17 · ⭐ 710) - A toolkit for servicing HTTP requests in Scala. MIT

GitHub (👨‍💻 87 · 🔀 110 · 📋 190 - 24% open · ⏱️ 27.07.2023):
```
 git clone https://github.com/unfiltered/unfiltered
```

xitrum (🥉16 · ⭐ 450) - Async and clustered Scala web framework and HTTP(S) server. MIT

GitHub (👨‍💻 31 · 🔀 52 · 📋 660 - 8% open · ⏱️ 28.02.2023):
```
 git clone https://github.com/xitrum-framework/xitrum
```

youi (🥉16 · ⭐ 210) - Next generation user interface and application development in Scala and.. MIT

GitHub (👨‍💻 11 · 🔀 29 · 📋 63 - 34% open · ⏱️ 07.12.2022):
```
 git clone https://github.com/outr/youi
```

Show 7 hidden projects...

colossus (🥈19 · ⭐ 1.2K · 💀) - I/O and Microservice library for Scala. Apache-2
scalatra (🥉18 · ⭐ 2.6K) - Tiny Scala high-performance, async web framework, inspired by.. ❗Unlicensed
cask (🥉15 · ⭐ 460) - Cask: a Scala HTTP micro-framework. ❗Unlicensed
chaos (🥉14 · ⭐ 250 · 💀) - A lightweight framework for writing REST services in Scala. Apache-2
reactive (🥉12 · ⭐ 220 · 💀) - A simple FRP library and a web UI framework built on it. ❗Unlicensed
analogweb-scala (🥉8 · ⭐ 13 · 💤) - Tiny High Performance HTTP Server for Scala. MIT
pagelets (🥉7 · ⭐ 77 · 💀) - A module for the Play Framework to build highly modular.. Apache-2

File processing

Libraries that handle common file formats including YAML, CSV, etc.

laika (🥇20 · ⭐ 390) - Site and E-book Generator and Customizable Text Markup Transformer for.. Apache-2

GitHub (👨‍💻 18 · 🔀 42 · 📋 220 - 5% open · ⏱️ 16.07.2023):
```
 git clone https://github.com/typelevel/Laika
```

kantan.csv (🥈15 · ⭐ 340 · 💤) - CSV handling library for Scala. Apache-2

GitHub (👨‍💻 9 · 🔀 34 · 📋 180 - 25% open · ⏱️ 06.09.2022):
```
 git clone https://github.com/nrinaudo/kantan.csv
```

spata (🥈13 · ⭐ 19) - Functional, stream-based CSV processor for Scala. Apache-2

GitHub (👨‍💻 3 · 🔀 5 · ⏱️ 09.06.2023):
```
 git clone https://github.com/fingo/spata
```

Show 3 hidden projects...

scala-csv (🥈13 · ⭐ 680) - CSV Reader/Writer for Scala. ❗Unlicensed
moultingyaml (🥉10 · ⭐ 98 · 💀) - Scala wrapper for SnakeYAML. MIT
fm-flatfile (🥉7 · ⭐ 10) - Scala Library for Reading Flat File Data (CSV/TSV/XLS/XLSX). Apache-2

SBT Plugins

coursier (🥇28 · ⭐ 2K) - Pure Scala Artifact Fetching. Apache-2

GitHub (👨‍💻 140 · 🔀 290 · 📥 8.3M · 📋 1.1K - 33% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/coursier/coursier
```

sbt-native-packager (🥇22 · ⭐ 1.6K · 📉) - sbt Native Packager. BSD-2

GitHub (👨‍💻 270 · 🔀 440 · 📋 780 - 16% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/sbt/sbt-native-packager
```

sbt-scoverage (🥇21 · ⭐ 620) - sbt plugin for scoverage. Apache-2

GitHub (👨‍💻 71 · 🔀 150 · 📋 250 - 13% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/scoverage/sbt-scoverage
```

mima (🥇20 · ⭐ 440) - A tool for catching binary incompatibility in Scala. Apache-2

GitHub (👨‍💻 48 · 🔀 67 · 📋 210 - 11% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/lightbend/mima
```

sbt-microsites (🥇20 · ⭐ 320) - An sbt plugin to create awesome microsites for your project. Apache-2

GitHub (👨‍💻 72 · 🔀 61 · 📋 140 - 12% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/47degrees/sbt-microsites
```

sbt-assembly (🥈19 · ⭐ 1.9K) - Deploy ber-JARs. Restart processes. (port of codahale/assembly-sbt). MIT

GitHub (👨‍💻 78 · 🔀 220 · 📋 340 - 29% open · ⏱️ 04.06.2023):
```
 git clone https://github.com/sbt/sbt-assembly
```

sbt-jmh (🥈19 · ⭐ 760) - Trust no one, bench everything. - sbt plugin for JMH (Java.. Apache-2

GitHub (👨‍💻 50 · 🔀 89 · 📋 97 - 28% open · ⏱️ 11.07.2023):
```
 git clone https://github.com/sbt/sbt-jmh
```

sbt-eclipse (🥈19 · ⭐ 720) - Plugin for sbt to create Eclipse project definitions. Apache-2

GitHub (👨‍💻 39 · 🔀 170 · 📋 280 - 27% open · ⏱️ 18.05.2023):
```
 git clone https://github.com/sbt/sbt-eclipse
```

sbt-release (🥈18 · ⭐ 620) - A release plugin for sbt. Apache-2

GitHub (👨‍💻 64 · 🔀 160 · 📋 170 - 42% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/sbt/sbt-release
```

mdoc (🥈18 · ⭐ 370) - Typechecked markdown documentation for Scala. Apache-2

GitHub (👨‍💻 43 · 🔀 68 · 📋 200 - 27% open · ⏱️ 31.07.2023):
```
 git clone https://github.com/scalameta/mdoc
```

sbt-sonatype (🥈18 · ⭐ 310) - A sbt plugin for publishing Scala/Java projects to the Maven.. Apache-2

GitHub (👨‍💻 28 · 🔀 49 · 📋 95 - 9% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/xerial/sbt-sonatype
```

sbt-ci-release (🥈18 · ⭐ 260) - sbt plugin to automate Sonatype releases from GitHub Actions. Apache-2

GitHub (👨‍💻 54 · 🔀 65 · 📋 81 - 17% open · ⏱️ 30.06.2023):
```
 git clone https://github.com/sbt/sbt-ci-release
```

sbt-updates (🥈17 · ⭐ 730) - sbt plugin that can check Maven and Ivy repositories for dependency.. BSD-3

GitHub (👨‍💻 29 · 🔀 51 · 📋 78 - 15% open · ⏱️ 29.07.2023):
```
 git clone https://github.com/rtimush/sbt-updates
```

sbt-docker (🥈17 · ⭐ 730) - Create Docker images directly from sbt. MIT

GitHub (👨‍💻 26 · 🔀 100 · 📋 90 - 23% open · ⏱️ 06.03.2023):
```
 git clone https://github.com/marcuslonnberg/sbt-docker
```

sbt-buildinfo (🥈17 · ⭐ 540) - I know this because build.sbt knows this. MIT

GitHub (👨‍💻 48 · 🔀 87 · 📋 100 - 15% open · ⏱️ 28.04.2023):
```
 git clone https://github.com/sbt/sbt-buildinfo
```

sbt-header (🥈17 · ⭐ 190) - sbt-header is an sbt plugin for creating file headers, e.g... Apache-2

GitHub (👨‍💻 38 · 🔀 53 · 📋 87 - 11% open · ⏱️ 07.06.2023):
```
 git clone https://github.com/sbt/sbt-header
```

sbt-scalafmt (🥈17 · ⭐ 170) - sbt plugin for Scalafmt. Apache-2

GitHub (👨‍💻 27 · 🔀 35 · 📋 61 - 8% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/scalameta/sbt-scalafmt
```

xsbt-web-plugin (🥉16 · ⭐ 380) - Servlet support for sbt. BSD-3

GitHub (👨‍💻 33 · 🔀 98 · 📋 260 - 4% open · ⏱️ 22.07.2023):
```
 git clone https://github.com/earldouglas/xsbt-web-plugin
```

sbt-git (🥉16 · ⭐ 340) - A git plugin for sbt. BSD-2

GitHub (👨‍💻 50 · 🔀 96 · 📋 110 - 25% open · ⏱️ 22.11.2022):
```
 git clone https://github.com/sbt/sbt-git
```

sbt-dependency-check (🥉16 · ⭐ 250) - SBT Plugin for OWASP DependencyCheck. Monitor your.. Apache-2

GitHub (👨‍💻 18 · 🔀 35 · 📋 83 - 4% open · ⏱️ 06.05.2023):
```
 git clone https://github.com/albuch/sbt-dependency-check
```

sbt-doctest (🥉16 · ⭐ 180) - Doctest for scala. MIT

GitHub (👨‍💻 26 · 🔀 27 · 📋 62 - 24% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/tkawachi/sbt-doctest
```

sbt-unidoc (🥉15 · ⭐ 120) - sbt plugin to create a unified Scaladoc or Javadoc API document.. Apache-2

GitHub (👨‍💻 23 · 🔀 28 · 📋 58 - 39% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/sbt/sbt-unidoc
```

splain (🥉14 · ⭐ 370) - better implicit errors for scala. MIT

GitHub (👨‍💻 18 · 🔀 29 · 📥 150 · 📋 53 - 16% open · ⏱️ 10.06.2023):
```
 git clone https://github.com/tek/splain
```

sbt-api-mappings (🥉14 · ⭐ 88) - An Sbt plugin that fills apiMappings for common Scala.. Apache-2

GitHub (👨‍💻 12 · 🔀 17 · 📋 14 - 57% open · ⏱️ 15.07.2023):
```
 git clone https://github.com/ThoughtWorksInc/sbt-api-mappings
```

sbt-revolver (🥉13 · ⭐ 830) - An SBT plugin for dangerously fast development turnaround in.. Apache-2

GitHub (👨‍💻 16 · 🔀 54 · 📋 85 - 24% open · ⏱️ 08.04.2023):
```
 git clone https://github.com/spray/sbt-revolver
```

sbt-scala-js-map (🥉12 · ⭐ 36) - A Sbt plugin that configures source mapping for.. Apache-2

GitHub (👨‍💻 4 · 🔀 3 · 📋 5 - 60% open · ⏱️ 15.07.2023):
```
 git clone https://github.com/ThoughtWorksInc/sbt-scala-js-map
```

sbt-ide-settings (🥉11 · ⭐ 57) - SBT plugin for tweaking various IDE settings. Apache-2

GitHub (👨‍💻 6 · 🔀 7 · 📋 13 - 61% open · ⏱️ 04.07.2023):
```
 git clone https://github.com/Jetbrains/sbt-ide-settings
```

Show 9 hidden projects...

sbt-pack (🥉14 · ⭐ 480) - A sbt plugin for creating distributable Scala packages. ❗Unlicensed
tut (🥉13 · ⭐ 600 · 💀) - doc/tutorial generator for scala. MIT
scala-clippy (🥉13 · ⭐ 320 · 💀) - Good advice for Scala compiler errors. Apache-2
sbt-site (🥉13 · ⭐ 180) - Site generation for sbt. ❗Unlicensed
better-monadic-for (🥉12 · ⭐ 680 · 💀) - Desugaring scala for without implicit withFilters. MIT
sbt-pgp (🥉12 · ⭐ 140) - PGP plugin for sbt. ❗Unlicensed
sbt-groll (🥉10 · ⭐ 130 · 💀) - sbt plugin to roll the Git history. Apache-2
sbt-deploy-ssh (🥉10 · ⭐ 27 · 💀) - SBT deploy plugin. MIT
sbt-ghpages (🥉9 · ⭐ 94) - git, site and ghpages support for sbt projects. ❗Unlicensed

Toolkits, extensions & ecosystems

ammonite (🥇27 · ⭐ 2.6K) - Scala Scripting. MIT

GitHub (👨‍💻 140 · 🔀 370 · 📥 860K · 📋 800 - 15% open · ⏱️ 18.07.2023):
```
 git clone https://github.com/com-lihaoyi/ammonite
```

shapeless (🥇26 · ⭐ 3.3K) - Generic programming for Scala. Apache-2

GitHub (👨‍💻 150 · 🔀 540 · 📦 100 · 📋 410 - 8% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/milessabin/shapeless
```

refined (🥇24 · ⭐ 1.6K) - Refinement types for Scala. MIT

GitHub (👨‍💻 77 · 🔀 150 · 📋 220 - 31% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/fthomas/refined
```

scalameta (🥇24 · ⭐ 1K) - Library to read, analyze, transform and generate Scala programs. BSD-3

GitHub (👨‍💻 120 · 🔀 220 · 📋 1.2K - 12% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/scalameta/scalameta
```

Monocle (🥈22 · ⭐ 1.6K) - Optics library for Scala. MIT

GitHub (👨‍💻 120 · 🔀 200 · 📋 380 - 11% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/optics-dev/monocle
```

tinylog (🥈21 · ⭐ 620) - tinylog is a lightweight logging framework for Java, Kotlin, Scala,.. Apache-2

GitHub (👨‍💻 19 · 🔀 74 · 📥 24K · 📦 2 · 📋 230 - 8% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/tinylog-org/tinylog
```

chimney (🥈20 · ⭐ 1K · 📈) - Scala library for boilerplate-free, type-safe data transformations. Apache-2

GitHub (👨‍💻 26 · 🔀 72 · 📋 180 - 26% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/scalalandio/chimney
```

util (🥈19 · ⭐ 2.7K) - Wonderful reusable code from Twitter. Apache-2

GitHub (👨‍💻 320 · 🔀 580 · 📋 120 - 9% open · ⏱️ 09.05.2023):
```
 git clone https://github.com/twitter/util
```

async (🥈19 · ⭐ 1.1K) - An asynchronous programming facility for Scala. Apache-2

GitHub (👨‍💻 28 · 🔀 89 · 📋 88 - 14% open · ⏱️ 27.07.2023):
```
 git clone https://github.com/scala/scala-async
```

quicklens (🥈19 · ⭐ 790) - Modify deeply nested case class fields. Apache-2

GitHub (👨‍💻 25 · 🔀 49 · 📋 49 - 40% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/softwaremill/quicklens
```

eff (🥈19 · ⭐ 560) - Eff monad for cats - https://atnos-org.github.io/eff. MIT

GitHub (👨‍💻 42 · 🔀 79 · 📋 66 - 4% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/atnos-org/eff
```

scribe (🥈19 · ⭐ 470) - The fastest logging library in the world. Built from scratch in Scala and.. MIT

GitHub (👨‍💻 18 · 🔀 37 · 📋 150 - 11% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/outr/scribe
```

better-files (🥉18 · ⭐ 1.5K) - Simple, safe and intuitive Scala I/O. MIT

GitHub (👨‍💻 60 · 🔀 150 · 📋 210 - 16% open · ⏱️ 17.02.2023):
```
 git clone https://github.com/pathikrit/better-files
```

enumeratum (🥉18 · ⭐ 1.2K) - A type-safe, reflection-free, powerful enumeration implementation for.. MIT

GitHub (👨‍💻 89 · 🔀 150 · 📋 120 - 21% open · ⏱️ 21.07.2023):
```
 git clone https://github.com/lloydmeta/enumeratum
```

scala-logging (🥉18 · ⭐ 890) - Convenient and performant logging library for Scala wrapping.. Apache-2

GitHub (👨‍💻 45 · 🔀 130 · 📋 120 - 21% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/lightbend-labs/scala-logging
```

Dsl.scala (🥉17 · ⭐ 260) - A framework to create embedded Domain-Specific Languages in Scala. Apache-2

GitHub (👨‍💻 5 · 🔀 29 · 📋 35 - 48% open · ⏱️ 02.07.2023):
```
 git clone https://github.com/ThoughtWorksInc/Dsl.scala
```

nscala-time (🥉16 · ⭐ 870) - A new Scala wrapper for Joda Time based on scala-time. Apache-2

GitHub (👨‍💻 25 · 🔀 86 · 📋 55 - 10% open · ⏱️ 26.07.2023):
```
 git clone https://github.com/nscala-time/nscala-time
```

scala-graph (🥉16 · ⭐ 550) - Graph for Scala is intended to provide basic graph functionality.. Apache-2

GitHub (👨‍💻 18 · 🔀 72 · 📋 120 - 12% open · ⏱️ 17.06.2023):
```
 git clone https://github.com/scala-graph/scala-graph
```

each (🥉16 · ⭐ 250) - A macro library that converts native imperative syntax to scalazs monadic.. Apache-2

GitHub (👨‍💻 15 · 🔀 27 · 📋 38 - 26% open · ⏱️ 03.02.2023):
```
 git clone https://github.com/ThoughtWorksInc/each
```

simulacrum (🥉15 · ⭐ 940) - First class syntax support for type classes in Scala. BSD-3

GitHub (👨‍💻 34 · 🔀 62 · 📋 73 - 38% open · ⏱️ 21.01.2023):
```
 git clone https://github.com/typelevel/simulacrum
```

larray (🥉15 · ⭐ 400) - Large off-heap arrays and mmap files for Scala and Java. Apache-2

GitHub (👨‍💻 11 · 🔀 40 · 📋 55 - 40% open · ⏱️ 25.11.2022):
```
 git clone https://github.com/xerial/larray
```

chronoscala (🥉14 · ⭐ 67) - A JSR-310 port of nscala_time. MIT

GitHub (👨‍💻 10 · 🔀 8 · 📋 16 - 18% open · ⏱️ 17.06.2023):
```
 git clone https://github.com/chronoscala/chronoscala
```

enableIf.scala (🥉14 · ⭐ 65) - A library that toggles Scala code at compile-time, like #if.. Apache-2

GitHub (👨‍💻 6 · 🔀 5 · 📋 10 - 50% open · ⏱️ 02.07.2023):
```
 git clone https://github.com/ThoughtWorksInc/enableIf.scala
```

Show 12 hidden projects...

cats (🥇24 · ⭐ 5K) - Lightweight, modular, and extensible library for functional programming. ❗Unlicensed
scalaz (🥈20 · ⭐ 4.6K) - Principled Functional Programming in Scala. ❗Unlicensed
cassovary (🥉17 · ⭐ 1K · 💀) - Cassovary is a simple big graph processing library for the JVM. Apache-2
freestyle (🥉17 · ⭐ 620 · 💀) - A cohesive & pragmatic framework of FP centric Scala libraries. Apache-2
hamsters (🥉14 · ⭐ 290 · 💀) - A mini Scala utility library. Apache-2
squid (🥉12 · ⭐ 200 · 💀) - Squid type-safe metaprogramming and compilation framework for Scala. Apache-2
log4s (🥉12 · ⭐ 170 · 💤) - High-performance SLF4J wrapper for Scala. ❗Unlicensed
scala-records (🥉11 · ⭐ 160 · 💀) - Labeled records for Scala based on structural refinement.. BSD-3
blindsight (🥉10 · ⭐ 81) - Blindsight is a Scala logging API with DSL based structured.. ❗Unlicensed
Freasy-Monad (🥉8 · ⭐ 110 · 💀) - Easy way to create Free Monad using Scala macros with first-.. MIT
freedsl (🥉8 · ⭐ 37 · 💀) - Practical effect composition library based on abstract wrapping.. ❗Unlicensed
lamma (🥉6 · ⭐ 90 · 💀) - Lamma schedule generator for Scala is a professional schedule.. ❗Unlicensed

Media processing

Libraries for audio, image, and video handling and processing

scrimage (🥇20 · ⭐ 970) - Java, Scala and Kotlin image processing library. Apache-2

GitHub (👨‍💻 54 · 🔀 130 · 📋 190 - 2% open · ⏱️ 13.07.2023):
```
 git clone https://github.com/sksamuel/scrimage
```

scalismo (🥈19 · ⭐ 230) - Scalable Image Analysis and Shape Modelling. Apache-2

GitHub (👨‍💻 22 · 🔀 64 · 📋 75 - 17% open · ⏱️ 30.06.2023):
```
 git clone https://github.com/unibas-gravis/scalismo
```

media4s (🥉9 · ⭐ 29) - Scala command-line wrapper around ffmpeg, ffprobe, ImageMagick, and other.. MIT

GitHub (👨‍💻 3 · 🔀 4 · ⏱️ 18.06.2023):
```
 git clone https://github.com/outr/media4s
```

Show 4 hidden projects...

scalacollider (🥈11 · ⭐ 200 · 💀) - A Scala sound synthesis library based on SuperCollider. ❗️AGPL-3.0
sbt-javacv (🥉9 · ⭐ 90 · 💀) - Start using OpenCV in your JVM project in just 1 line, no separate.. MIT
scala-phash (🥉8 · ⭐ 19 · 💀) - Image comparison by hash codes. MIT
chromaprint.scala (🥉7 · ⭐ 85 · 💀) - Chromaprint/AcoustID audio fingerprinting for the JVM. ❗Unlicensed

Dependency injection

airframe (🥇22 · ⭐ 610) - Essential Building Blocks for Scala. Apache-2

GitHub (👨‍💻 43 · 🔀 61 · 📋 580 - 17% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/wvlet/airframe
```

izumi (🥇22 · ⭐ 580) - Productivity-oriented collection of lightweight fancy stuff for Scala.. BSD-2

GitHub (👨‍💻 31 · 🔀 56 · 📋 450 - 14% open · ⏱️ 26.07.2023):
```
 git clone https://github.com/7mind/izumi
```

macwire (🥈19 · ⭐ 1.2K) - Lightweight and Nonintrusive Scala Dependency Injection Library. Apache-2

GitHub (👨‍💻 40 · 🔀 69 · 📋 140 - 49% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/softwaremill/macwire
```

scala-guice (🥉16 · ⭐ 340) - Scala extensions for Google Guice. Apache-2

GitHub (👨‍💻 26 · 🔀 46 · 📋 61 - 19% open · ⏱️ 13.05.2023):
```
 git clone https://github.com/codingwell/scala-guice
```

scaldi (🥉15 · ⭐ 290 · 💤) - Lightweight Scala Dependency Injection Library. Apache-2

GitHub (👨‍💻 13 · 🔀 24 · 📋 72 - 31% open · ⏱️ 08.06.2022):
```
 git clone https://github.com/scaldi/scaldi
```

jam (🥉9 · ⭐ 59) - Incredibly simple DI Scala library. MIT

GitHub (👨‍💻 4 · 🔀 3 · ⏱️ 01.07.2023):
```
 git clone https://github.com/yakivy/jam
```

Show 2 hidden projects...

subcut (🥉10 · ⭐ 400 · 💀) - Scala Uniquely Bound Classes Under Traits. ❗Unlicensed
sclasner (🥉6 · ⭐ 10 · 💀) - Scala classpath scanner. MIT

HTTP

HTTP clients and servers

http4s (🥇28 · ⭐ 2.4K) - A minimal, idiomatic Scala interface for HTTP. Apache-2

GitHub (👨‍💻 450 · 🔀 780 · 📋 1.4K - 21% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/http4s/http4s
```

sttp (🥇26 · ⭐ 1.4K) - The Scala HTTP client you always wanted!. Apache-2

GitHub (👨‍💻 200 · 🔀 270 · 📋 400 - 13% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/softwaremill/sttp
```

tapir (🥇26 · ⭐ 1.2K) - Declarative, type-safe web endpoints library. Apache-2

GitHub (👨‍💻 250 · 🔀 360 · 📋 720 - 16% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/softwaremill/tapir
```

finch (🥈22 · ⭐ 1.6K) - Scala combinator library for building Finagle HTTP services. Apache-2

GitHub (👨‍💻 130 · 🔀 230 · 📋 410 - 10% open · ⏱️ 02.08.2023):
```
 git clone https://github.com/finagle/finch
```

endpoints4s (🥈20 · ⭐ 400) - Describe HTTP endpoints in Scala and derive clients, servers, and.. MIT

GitHub (👨‍💻 59 · 🔀 93 · 📋 200 - 18% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/endpoints4s/endpoints4s
```

scalaxb (🥈20 · ⭐ 330) - scalaxb is an XML data binding tool for Scala. MIT

GitHub (👨‍💻 68 · 🔀 150 · 📋 440 - 35% open · ⏱️ 21.06.2023):
```
 git clone https://github.com/eed3si9n/scalaxb
```

play-ws (🥉18 · ⭐ 220) - Standalone Play WS, an async HTTP client with fluent API. Apache-2

GitHub (👨‍💻 48 · 🔀 84 · 📋 150 - 48% open · ⏱️ 19.07.2023):
```
 git clone https://github.com/playframework/play-ws
```

reboot (🥉17 · ⭐ 430) - Scala wrapper for the Java AsyncHttpClient. ❗️LGPL-3.0

GitHub (👨‍💻 38 · 🔀 110 · 📋 100 - 4% open · ⏱️ 02.02.2023):
```
 git clone https://github.com/dispatch/reboot
```

scalaj-http (🥉15 · ⭐ 980 · 💤) - Simple scala wrapper for HttpURLConnection. OAuth included. Apache-2

GitHub (👨‍💻 29 · 🔀 120 · 📋 140 - 21% open · ⏱️ 03.04.2022):
```
 git clone https://github.com/scalaj/scalaj-http
```

lolhttp (🥉12 · ⭐ 93) - An HTTP Server and Client library for Scala. Apache-2

GitHub (👨‍💻 20 · 🔀 18 · 📋 37 - 78% open · ⏱️ 17.07.2023):
```
 git clone https://github.com/criteo/lolhttp
```

Show 6 hidden projects...

akka-http (🥈23 · ⭐ 1.3K) - The Streaming-first HTTP server/module of Akka. ❗Unlicensed
requests-scala (🥉14 · ⭐ 680) - A Scala port of the popular Python Requests HTTP client:.. ❗Unlicensed
fintrospect (🥉11 · ⭐ 93 · 💀) - Implement fast, type-safe HTTP webservices for Finagle. Apache-2
roshttp (🥉10 · ⭐ 120 · 💀) - Unified Scala.js + Scala HTTP client API. MIT
jefe (🥉7 · ⭐ 8 · 💀) - Manages installation, updating, downloading, launching, error reporting, and.. MIT
frontier (🥉5 · ⭐ 10 · 💤) - Fast, efficient, pure-functional, effect-free websocket, http.. ❗Unlicensed

Libraries and frameworks for various types of code testing

gatling (🥇26 · ⭐ 6K) - Modern Load Testing as Code. Apache-2

GitHub (👨‍💻 220 · 🔀 1.2K · 📋 3.6K - 1% open · ⏱️ 02.08.2023):
```
 git clone https://github.com/gatling/gatling
```

scalacheck (🥇23 · ⭐ 1.9K) - Property-based testing for Scala. BSD-3

GitHub (👨‍💻 140 · 🔀 400 · 📋 350 - 17% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/typelevel/scalacheck
```

scalatest (🥇23 · ⭐ 1.1K · 📈) - A testing tool for Scala and Java developers. Apache-2

GitHub (👨‍💻 64 · 🔀 340 · 📋 840 - 60% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/scalatest/scalatest
```

spark-testing-base (🥈22 · ⭐ 1.4K) - Base classes to use when writing tests with Spark. Apache-2

GitHub (👨‍💻 60 · 🔀 360 · 📦 35 · 📋 220 - 46% open · ⏱️ 02.05.2023):
```
 git clone https://github.com/holdenk/spark-testing-base
```

cornichon (🥈19 · ⭐ 220) - Scala DSL for testing HTTP JSON API. Apache-2

GitHub (👨‍💻 18 · 🔀 29 · 📋 160 - 13% open · ⏱️ 01.08.2023):
```
 git clone https://github.com/agourlay/cornichon
```

stryker4s (🥈19 · ⭐ 180) - Mutation testing for Scala. Apache-2

GitHub (👨‍💻 29 · 🔀 28 · 📋 160 - 21% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/stryker-mutator/stryker4s
```

scalamock (🥉18 · ⭐ 490) - Native Scala mocking framework. MIT

GitHub (👨‍💻 33 · 🔀 90 · 📋 220 - 10% open · ⏱️ 01.07.2023):
```
 git clone https://github.com/paulbutcher/scalamock
```

munit (🥉18 · ⭐ 380) - Scala testing library with actionable errors and extensible APIs. Apache-2

GitHub (👨‍💻 44 · 🔀 72 · 📋 140 - 32% open · ⏱️ 28.07.2023):
```
 git clone https://github.com/scalameta/munit
```

mockito-scala (🥉17 · ⭐ 320) - Mockito for Scala language. MIT

GitHub (👨‍💻 29 · 🔀 51 · 📋 130 - 24% open · ⏱️ 20.03.2023):
```
 git clone https://github.com/mockito/mockito-scala
```

testcontainers-scala (🥉16 · ⭐ 580) - Docker containers for testing in scala. MIT

GitHub (👨‍💻 76 · 🔀 110 · 📋 100 - 30% open · ⏱️ 17.06.2023):
```
 git clone https://github.com/testcontainers/testcontainers-scala
```

scalaprops (🥉14 · ⭐ 280) - property based testing library for Scala. MIT

GitHub (👨‍💻 12 · 🔀 21 · 📋 20 - 40% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/scalaprops/scalaprops
```

Show 6 hidden projects...

specs2 (🥈20 · ⭐ 730) - Software Specifications for Scala. ❗Unlicensed
weaver-test (🥉17 · ⭐ 390) - A test framework that runs everything in parallel. ❗Unlicensed
minitest (🥉15 · ⭐ 180 · 💀) - The super light testing library for Scala and Scala.js. Apache-2
scalameter (🥉14 · ⭐ 500 · 💤) - Microbenchmarking and performance regression testing.. ❗Unlicensed
utest (🥉14 · ⭐ 470) - A simple testing framework for Scala. ❗Unlicensed
scalive (🥉11 · ⭐ 200 · 💀) - Connect a Scala REPL to running JVM processes without any prior setup. MIT

Libraries for security, authentication, and cryptography

scala-oauth2-provider (🥈16 · ⭐ 530 · 💤) - OAuth 2.0 server-side implementation written in Scala. MIT

GitHub (👨‍💻 27 · 🔀 100 · 📋 66 - 6% open · ⏱️ 10.02.2022):
```
 git clone https://github.com/nulab/scala-oauth2-provider
```

play-pac4j (🥈15 · ⭐ 400) - Security library for Play framework 2 in Java and Scala: OAuth,.. Apache-2

GitHub (👨‍💻 47 · 🔀 100 · ⏱️ 19.07.2023):
```
 git clone https://github.com/pac4j/play-pac4j
```

sttp-oauth2 (🥉13 · ⭐ 66) - OAuth2 client library implemented in Scala using sttp. Apache-2

GitHub (👨‍💻 14 · 🔀 20 · 📋 43 - 53% open · ⏱️ 20.07.2023):
```
 git clone https://github.com/ocadotechnology/sttp-oauth2
```

Maven (⏱️ 28.02.2023):

 <dependency>
 	<groupId>com.ocadotechnology</groupId>
 	<artifactId>sttp-oauth2_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

play-googleauth (🥉12 · ⭐ 32) - Simple play module for authenticating against Google. Apache-2

GitHub (👨‍💻 39 · 🔀 9 · ⏱️ 25.07.2023):

 git clone https://github.com/guardian/play-googleauth

jose (🥉9 · ⭐ 15) - Extensible JOSE library for Scala. Unlicense

GitHub (👨‍💻 4 · 🔀 5 · 📋 13 - 69% open · ⏱️ 14.07.2023):
```
 git clone https://github.com/blackdoor/jose
```

Show 7 hidden projects...

securesocial (🥇17 · ⭐ 1.2K · 💀) - A module that provides OAuth, OAuth2 and OpenID.. Apache-2
akka-http-session (🥇17 · ⭐ 440 · 💀) - Web & mobile client-side akka-http sessions, with.. Apache-2
play2-auth (🥈15 · ⭐ 620 · 💀) - Play2.x Authentication and Authorization module. Apache-2
tsec (🥈15 · ⭐ 350 · 💀) - Type-safe general-cryptography library - https://jmcardon.github.io/tsec/. MIT
scrypto (🥈15 · ⭐ 200) - Cryptographic primitives for Scala. ❗️CC0-1.0
aws-request-signer (🥉9 · ⭐ 22 · 💀) - Scala library to sign HTTP requests to AWS services. Apache-2
OAuth2-mock-play (🥉7 · ⭐ 25 · 💀) - An implementation of an OAuth2 server designed for.. MIT

Data handling

Libraries for data binding, validation, and serialization

scalapb (🥇25 · ⭐ 1.3K · 📉) - Protocol buffer compiler for Scala. Apache-2

GitHub (👨‍💻 120 · 🔀 270 · 📥 400K · 📋 550 - 2% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/scalapb/scalapb
```

upickle (🥇20 · ⭐ 670) - uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack).. MIT

GitHub (👨‍💻 52 · 🔀 150 · 📋 270 - 5% open · ⏱️ 09.07.2023):
```
 git clone https://github.com/com-lihaoyi/upickle
```

scrooge (🥈19 · ⭐ 780) - A Thrift parser/generator. Apache-2

GitHub (👨‍💻 230 · 🔀 240 · 📋 180 - 18% open · ⏱️ 13.02.2023):
```
 git clone https://github.com/twitter/scrooge
```

scodec (🥈18 · ⭐ 790) - Scala combinator library for working with binary data. BSD-3

GitHub (👨‍💻 61 · 🔀 100 · 📋 71 - 18% open · ⏱️ 05.05.2023):
```
 git clone https://github.com/scodec/scodec
```

avro4s (🥈18 · ⭐ 700) - Avro schema generation and serialization / deserialization for Scala. Apache-2

GitHub (👨‍💻 100 · 🔀 220 · 📋 370 - 3% open · ⏱️ 04.07.2023):
```
 git clone https://github.com/sksamuel/avro4s
```

chill (🥈18 · ⭐ 600) - Scala extensions for the Kryo serialization library. Apache-2

GitHub (👨‍💻 67 · 🔀 140 · 📋 150 - 38% open · ⏱️ 19.03.2023):
```
 git clone https://github.com/twitter/chill
```

proto (🥉12 · ⭐ 31) - Lightweight and fast serialization library for Scala 2/3 based on Protocol.. MIT

GitHub (👨‍💻 7 · 🔀 3 · ⏱️ 15.06.2023):

 git clone https://github.com/zero-deps/proto

fields (🥉8 · ⭐ 43 · 💤) - Scala validation library. Apache-2

GitHub (👨‍💻 1 · 🔀 3 · 📋 18 - 33% open · ⏱️ 09.08.2022):
```
 git clone https://github.com/jap-company/fields
```

dupin (🥉6 · ⭐ 41) - Minimal, idiomatic, customizable validation Scala library. MIT

GitHub (👨‍💻 2 · 🔀 2 · ⏱️ 25.04.2023):
```
 git clone https://github.com/yakivy/dupin
```

Show 5 hidden projects...

accord (🥉12 · ⭐ 530) - Accord: A sane validation library for Scala. ❗Unlicensed
octopus (🥉10 · ⭐ 150 · 💀) - Scala library for boilerplate-free validation. Apache-2
msgpack-scala (🥉7 · ⭐ 93 · 💀) - MessagePack serializer implementation for Scala /.. ❗Unlicensed
avro-codegen (🥉7 · ⭐ 9 · 💀) - Scala code generator for Avro schemas. ❗Unlicensed
veto (🥉4 · ⭐ 6 · 💀) - If you dont agree with the data. Apache-2

Parsers

Libraries for creating custom parsers

scala-parser-combinators (🥇19 · ⭐ 630) - simple combinator-based parsing for Scala. formerly.. Apache-2

GitHub (👨‍💻 70 · 🔀 130 · 📋 120 - 18% open · ⏱️ 12.07.2023):
```
 git clone https://github.com/scala/scala-parser-combinators
```

fastparse (🥈18 · ⭐ 1K) - Writing Fast Parsers Fast in Scala. MIT

GitHub (👨‍💻 52 · 🔀 170 · 📋 130 - 13% open · ⏱️ 10.07.2023):
```
 git clone https://github.com/com-lihaoyi/fastparse
```

cats-parse (🥈18 · ⭐ 210) - A parsing library for the cats ecosystem. MIT

GitHub (👨‍💻 31 · 🔀 45 · 📋 92 - 27% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/typelevel/cats-parse
```

atto (🥉15 · ⭐ 360 · 💤) - friendly little parsers. MIT

GitHub (👨‍💻 31 · 🔀 59 · 📋 30 - 63% open · ⏱️ 07.07.2022):
```
 git clone https://github.com/tpolecat/atto
```

scallion (🥉9 · ⭐ 51 · 💤) - LL(1) parser combinators in Scala. Apache-2

GitHub (👨‍💻 8 · 🔀 16 · 📥 400 · 📋 5 - 60% open · ⏱️ 03.10.2022):
```
 git clone https://github.com/epfl-lara/scallion
```

Show 1 hidden projects...

parboiled2 (🥉14 · ⭐ 710) - A macro-based PEG parser generator for Scala 2.10+. ❗Unlicensed

Reactive programming

Reactive programming libraries (streams, observables...)

monix (🥇21 · ⭐ 1.9K · 📈) - Asynchronous, Reactive Programming for Scala and Scala.js. Apache-2

GitHub (👨‍💻 100 · 🔀 240 · 📋 660 - 12% open · ⏱️ 03.05.2023):
```
 git clone https://github.com/monix/monix
```

rescala (🥈15 · ⭐ 79) - REScala - distributed and reactive programming embedded in OO and FP.. Apache-2

GitHub (👨‍💻 28 · 🔀 25 · ⏱️ 05.08.2023):

 git clone https://github.com/rescala-lang/rescala

reactor-scala-extensions (🥉13 · ⭐ 53 · 💤) - A scala extension for Project Reactors Flux and Mono. Apache-2

GitHub (👨‍💻 16 · 🔀 16 · ⏱️ 01.03.2022):

 git clone https://github.com/spring-attic/reactor-scala-extensions

wire-signals (🥉10 · ⭐ 23 · 💤) - A small and effective event-handling library for Scala. ❗️GPL-3.0

GitHub (👨‍💻 2 · 🔀 5 · 📋 33 - 21% open · ⏱️ 06.02.2022):
```
 git clone https://github.com/wireapp/wire-signals
```

Show 7 hidden projects...

fs2 (🥇24 · ⭐ 2.2K) - Compositional, streaming I/O library for Scala. ❗Unlicensed
rxscala (🥈16 · ⭐ 890 · 💀) - RxScala Reactive Extensions for Scala a library for composing.. Apache-2
iteratee (🥈15 · ⭐ 190 · 💀) - Iteratees for Cats. Apache-2
scala.rx (🥉13 · ⭐ 990 · 💤) - An experimental library for Functional Reactive Programming.. ❗Unlicensed
vertx-lang-scala (🥉12 · ⭐ 120) - Vert.x for Scala. ❗Unlicensed
synapsegrid (🥉8 · ⭐ 120 · 💀) - SynapseGrid is a framework for constructing dynamic low.. ❗Unlicensed
reactors (🥉8 · ⭐ 4 · 💀) - A concurrent reactive programming framework. BSD-3

Development environment

Various tooling libraries that help with the overall Scala programming environment

fastring (🥇13 · ⭐ 120) - Extremely fast string formatting. Apache-2

GitHub (👨‍💻 7 · 🔀 9 · 📋 7 - 42% open · ⏱️ 15.07.2023):
```
 git clone https://github.com/atry/fastring
```

dregex (🥇13 · ⭐ 39) - Dregex is a JVM library that implements a regular expression engine using.. BSD-2

GitHub (👨‍💻 6 · 🔀 4 · 📋 5 - 40% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/marianobarrios/dregex
```

fast-string-interpolator (🥈12 · ⭐ 84) - Scala macro that generates ultra-fast string.. Apache-2

GitHub (👨‍💻 7 · 🔀 6 · 📋 7 - 28% open · ⏱️ 12.07.2023):

 git clone https://github.com/plokhotnyuk/fast-string-interpolator

Show 6 hidden projects...

scalatex (🥈10 · ⭐ 290 · 💀) - Programmable, Typesafe Document Generation. ❗Unlicensed
scala-trace-debug (🥉9 · ⭐ 120 · 💀) - Macro based print debugging. Locates log statements in.. MIT
scala2plantuml (🥉9 · ⭐ 21 · 💀) - Scala2PlantUML generates PlantUML diagrams from Scala code. MIT
pos (🥉8 · ⭐ 23 · 💀) - Macro based print debugging for Scala code. Locates debug statements in.. Apache-2
stone (🥉6 · ⭐ 4 · 💀) - URL (de)construct. Withers. Apache-2
scalajs-router (🥉4 · ⭐ 4 · 💀) - ScalaJS frontend router. Apache-2

Templating engines

twirl (🥇19 · ⭐ 520) - Twirl is Plays default template engine. Apache-2

GitHub (👨‍💻 51 · 🔀 110 · 📋 110 - 35% open · ⏱️ 25.07.2023):
```
 git clone https://github.com/playframework/twirl
```

scalate (🥈17 · ⭐ 600) - Scalate is a Scala based template engine which supports HAML,.. Apache-2

GitHub (👨‍💻 73 · 🔀 100 · 📋 64 - 48% open · ⏱️ 05.08.2023):
```
 git clone https://github.com/scalate/scalate
```

scalatags (🥉15 · ⭐ 720) - ScalaTags is a small XML/HTML construction library for Scala. MIT

GitHub (👨‍💻 61 · 🔀 120 · 📋 140 - 22% open · ⏱️ 07.06.2023):
```
 git clone https://github.com/com-lihaoyi/scalatags
```

hepek (🥉10 · ⭐ 93) - Typesafe HTML templates in pure Scala. Static site generator included!.. Apache-2

GitHub (👨‍💻 6 · 🔀 9 · 📋 24 - 29% open · ⏱️ 04.07.2023):
```
 git clone https://github.com/sake92/hepek
```

Show 1 hidden projects...

beard (🥉10 · ⭐ 120 · 💀) - A lightweight, logicless templating engine, written in Scala and.. ❗Unlicensed

Business intelligence

Libraries for data analysis, machine learning, and AI

bigdl (🥇32 · ⭐ 4.3K) - Fast, distributed, secure AI for Big Data. Apache-2

GitHub (👨‍💻 180 · 🔀 1.1K · 📦 45 · 📋 2K - 39% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/intel-analytics/bigdl
```

spark-nlp (🥇29 · ⭐ 3.4K) - State of the Art Natural Language Processing. Apache-2

GitHub (👨‍💻 110 · 🔀 660 · 📦 330 · 📋 810 - 4% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/johnsnowlabs/spark-nlp
```

algebird (🥇24 · ⭐ 2.3K) - Abstract Algebra for Scala. Apache-2

GitHub (👨‍💻 110 · 🔀 350 · 📋 260 - 36% open · ⏱️ 30.07.2023):
```
 git clone https://github.com/twitter/algebird
```

spire (🥈22 · ⭐ 1.7K) - Powerful new number types and numeric abstractions for Scala. MIT

GitHub (👨‍💻 100 · 🔀 250 · 📋 400 - 32% open · ⏱️ 27.06.2023):
```
 git clone https://github.com/typelevel/spire
```

zeppelin (🥈21 · ⭐ 6.1K) - Web-based notebook that enables data-driven, interactive data.. Apache-2

GitHub (👨‍💻 520 · 🔀 2.8K · ⏱️ 01.08.2023):
```
 git clone https://github.com/apache/zeppelin
```

breeze (🥈19 · ⭐ 3.4K · 💤) - Breeze is a numerical processing library for Scala. Apache-2

GitHub (👨‍💻 140 · 🔀 700 · 📋 540 - 16% open · ⏱️ 22.08.2022):
```
 git clone https://github.com/scalanlp/breeze
```

squants (🥈17 · ⭐ 900) - The Scala API for Quantities, Units of Measure and Dimensional.. Apache-2

GitHub (👨‍💻 60 · 🔀 110 · 📋 140 - 29% open · ⏱️ 13.12.2022):
```
 git clone https://github.com/typelevel/squants
```

openmole (🥈17 · ⭐ 140) - Workflow engine for exploration of simulation models using high.. ❗️AGPL-3.0

GitHub (👨‍💻 47 · 🔀 34 · 📥 56 · 📋 440 - 17% open · ⏱️ 19.07.2023):
```
 git clone https://github.com/openmole/openmole
```

tensorflow_scala (🥈16 · ⭐ 920 · 💤) - TensorFlow API for the Scala Programming Language. Apache-2

GitHub (👨‍💻 12 · 🔀 99 · 📋 150 - 19% open · ⏱️ 22.06.2022):
```
 git clone https://github.com/eaplatanios/tensorflow_scala
```

openai-scala-client (🥉15 · ⭐ 110) - Scala client for OpenAI API. MIT

GitHub (👨‍💻 3 · 🔀 9 · 📋 28 - 32% open · ⏱️ 18.07.2023):
```
 git clone https://github.com/cequence-io/openai-scala-client
```

Maven (📦 2 · ⏱️ 18.07.2023):

 <dependency>
 	<groupId>io.cequence</groupId>
 	<artifactId>openai-scala-client_2.13</artifactId>
 	<version>[VERSION]</version>
 </dependency>

onnx-scala (🥉14 · ⭐ 130) - An ONNX (Open Neural Network eXchange) API and backend for.. ❗️AGPL-3.0

GitHub (👨‍💻 4 · 🔀 10 · 📋 10 - 20% open · ⏱️ 31.07.2023):
```
 git clone https://github.com/emergentorder/onnx-scala
```

optimus (🥉12 · ⭐ 140 · 💤) - Optimus is a mathematical programming library for Scala. ❗️LGPL-3.0

GitHub (👨‍💻 9 · 🔀 26 · 📥 1.8K · ⏱️ 27.08.2022):
```
 git clone https://github.com/vagmcs/optimus
```

numsca (🥉11 · ⭐ 180) - numsca is numpy for scala. BSD-2

GitHub (🔀 16 · 📋 10 - 30% open · ⏱️ 30.01.2023):
```
 git clone https://github.com/botkop/numsca
```

ndscala (🥉6 · ⭐ 46) - N-dimensional / multi-dimensional arrays (tensors) in Scala 3. Think.. ❗️AGPL-3.0

GitHub (👨‍💻 3 · 🔀 6 · ⏱️ 22.12.2022):

 git clone https://github.com/sciscala/ndscala

Show 12 hidden projects...

smile (🥇24 · ⭐ 5.8K) - Statistical Machine Intelligence & Learning Engine. ❗Unlicensed
spark-notebook (🥈21 · ⭐ 3.1K · 💀) - Interactive and Reactive Data Science using Scala and.. Apache-2
figaro (🥈16 · ⭐ 760 · 💤) - Figaro Programming Language and Core Libraries. ❗Unlicensed
doddle-model (🥉13 · ⭐ 140 · 💀) - doddle-model: machine learning in Scala. Apache-2
libra (🥉10 · ⭐ 200 · 💀) - A dimensional analysis library based on dependent types. ❗Unlicensed
clustering4ever (🥉10 · ⭐ 130 · 💀) - C4E, a JVM friendly library written in Scala for both.. Apache-2
lomrf (🥉9 · ⭐ 78 · 💀) - LoMRF is an open-source implementation of Markov Logic Networks. Apache-2
rings (🥉9 · ⭐ 69 · 💤) - Rings: efficient JVM library for polynomial rings. ❗Unlicensed
axle (🥉9 · ⭐ 65) - Axle Domain Specific Language for Scientific Cloud Computing and.. ❗Unlicensed
vecmatlib (🥉9 · ⭐ 3) - Open source Scala library that add data structures for vectors and.. Apache-2
mgo (🥉7 · ⭐ 70) - Purely functional genetic algorithms for multi-objective optimisation. ❗Unlicensed
synapses (🥉7 · ⭐ 68 · 💀) - A group of neural-network libraries for functional and mainstream.. MIT

Big data

Libraries for processing and handling big data sets

spark (🥇29 · ⭐ 36K) - Apache Spark - A unified analytics engine for large-scale data processing. Apache-2

GitHub (👨‍💻 2.9K · 🔀 27K · ⏱️ 05.08.2023):
```
 git clone https://github.com/apache/spark
```

flink (🥇27 · ⭐ 22K) - Apache Flink. Apache-2

GitHub (👨‍💻 1.8K · 🔀 12K · ⏱️ 05.08.2023):
```
 git clone https://github.com/apache/flink
```

scio (🥇27 · ⭐ 2.5K) - A Scala API for Apache Beam and Google Cloud Dataflow. Apache-2

GitHub (👨‍💻 200 · 🔀 500 · 📥 11K · 📋 1.2K - 10% open · ⏱️ 04.08.2023):
```
 git clone https://github.com/spotify/scio
```

nussknacker (🥈23 · ⭐ 460) - Low-code tool for automating actions on real time data | Stream.. Apache-2

GitHub (👨‍💻 64 · 🔀 84 · 📥 300 · 📋 440 - 15% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/touk/nussknacker
```

scalding (🥈21 · ⭐ 3.4K · 📉) - A Scala API for Cascading. Apache-2

GitHub (👨‍💻 210 · 🔀 700 · 📋 650 - 49% open · ⏱️ 28.05.2023):
```
 git clone https://github.com/twitter/scalding
```

gridscale (🥉11 · ⭐ 26) - Scala library for accessing various file, batch systems, job.. ❗️AGPL-3.0

GitHub (👨‍💻 5 · 🔀 6 · 📋 13 - 38% open · ⏱️ 13.07.2023):
```
 git clone https://github.com/openmole/gridscale
```

Show 7 hidden projects...

summingbird (🥉20 · ⭐ 2.1K · 💀) - Streaming MapReduce with Scalding and Storm. Apache-2
sparta (🥉19 · ⭐ 520 · 💀) - Real Time Analytics and Data Pipelines based on Spark Streaming. Apache-2
bidmach (🥉18 · ⭐ 910 · 💀) - CPU and GPU-accelerated Machine Learning Library. BSD-3
vegas (🥉15 · ⭐ 730 · 💀) - The missing MatPlotLib for Scala + Spark. MIT
gallia-core (🥉10 · ⭐ 76) - A schema-aware Scala library for data transformation. ❗Unlicensed
schemer (🥉9 · ⭐ 110 · 💀) - Schema registry for CSV, TSV, JSON, AVRO and Parquet schema... Apache-2
sparkplug (🥉9 · ⭐ 28 · 💀) - Spark package to plug holes in data using SQL based rules. Apache-2

Distributed

Libraries and frameworks for building and maintaining distributed systems and fault-tolerant applications.

kafka (🥇28 · ⭐ 26K) - Mirror of Apache Kafka. Apache-2

GitHub (👨‍💻 1.3K · 🔀 13K · 📦 5 · ⏱️ 05.08.2023):
```
 git clone https://github.com/apache/kafka
```

finagle (🥈24 · ⭐ 8.7K) - A fault tolerant, protocol-agnostic RPC system. Apache-2

GitHub (👨‍💻 520 · 🔀 1.5K · 📋 410 - 15% open · ⏱️ 23.06.2023):
```
 git clone https://github.com/twitter/finagle
```

lagom (🥈24 · ⭐ 2.6K) - Reactive Microservices for the JVM. Apache-2

GitHub (👨‍💻 150 · 🔀 630 · 📋 1.1K - 41% open · ⏱️ 30.06.2023):
```
 git clone https://github.com/lagom/lagom
```

parapet (🥉11 · ⭐ 140) - A purely functional library to build distributed and event-driven.. Apache-2

GitHub (👨‍💻 5 · 🔀 6 · 📋 26 - 30% open · ⏱️ 30.04.2023):
```
 git clone https://github.com/parapet-io/parapet
```

annette (🥉11 · ⭐ 15) - Platform to build distributed, scalable, enterprise-wide business.. Apache-2

GitHub (⏱️ 18.07.2023):

 git clone https://github.com/annetteplatform/annette

poppet (🥉9 · ⭐ 22) - Minimal, type-safe RPC Scala library. MIT

GitHub (👨‍💻 2 · 🔀 1 · ⏱️ 20.06.2023):
```
 git clone https://github.com/yakivy/poppet
```

Show 4 hidden projects...

akka (🥇28 · ⭐ 13K) - Build highly concurrent, distributed, and resilient message-driven.. ❗Unlicensed
curiodb (🥉11 · ⭐ 510 · 💀) - Distributed NoSQL Database. BSD-2
akka-tracing (🥉11 · ⭐ 320 · 💀) - A distributed tracing extension for Akka. Provides.. ❗Unlicensed
glokka (🥉9 · ⭐ 56 · 💀) - Library to register and lookup actors by names in an Akka cluster. MIT

ScalaJS

Libraries purely built for Scala.js

scala-js (🥇25 · ⭐ 4.5K) - Scala.js, the Scala to JavaScript compiler. Apache-2

GitHub (👨‍💻 100 · 🔀 390 · 📋 2.2K - 1% open · ⏱️ 03.08.2023):
```
 git clone https://github.com/scala-js/scala-js
```

scalajs-react (🥈21 · ⭐ 1.6K) - Facebooks React on Scala.JS. Apache-2

GitHub (👨‍💻 81 · 🔀 240 · 📋 530 - 4% open · ⏱️ 24.07.2023):
```
 git clone https://github.com/japgolly/scalajs-react
```

Laminar (🥉15 · ⭐ 650) - Simple, expressive, and safe UI library for Scala.js. MIT

GitHub (👨‍💻 13 · 🔀 44 · 📋 92 - 19% open · ⏱️ 09.07.2023):
```
 git clone https://github.com/raquo/Laminar
```

Show 4 hidden projects...

scala-js-dom (🥈20 · ⭐ 290) - Statically typed DOM API for Scala.js. ❗Unlicensed
scalajs-angular (🥉14 · ⭐ 260 · 💀) - AngularJS Binding for Scala.js. Apache-2
scalajs-bundler (🥉14 · ⭐ 230) - ❗Unlicensed
nodejs (🥉14 · ⭐ 160 · 💀) - This project provides Scala.js type-safe bindings for Node.js.. Apache-2

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stkeky/best-of-scala

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best-of-scala

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Explanation

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Development Cycle

Database Clients

Ecosystems

JSON

Web Frameworks

File processing

SBT Plugins

Toolkits, extensions & ecosystems

Media processing

Dependency injection

HTTP

Libraries and frameworks for various types of code testing

Libraries for security, authentication, and cryptography

Data handling

Parsers

Reactive programming

Development environment

Templating engines

Business intelligence

Big data

Distributed

ScalaJS

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