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Discover the top trending Scala repositories and projects on Github. Explore the latest trends in Scala development.

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the-algorithm

Source code for Twitter's Recommendation Algorithm

prisma1

💾 Database Tools incl. ORM, Migrations and Admin UI (Postgres, MySQL & MongoDB) [deprecated]

spark

Apache Spark - A unified analytics engine for large-scale data processing

predictionio

PredictionIO, a machine learning server for developers and ML engineers.

bfg-repo-cleaner

Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala

scala

Scala 2 compiler and standard library. Bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

lila

♞ lichess.org: the forever free, adless and open source chess server ♞

akka

Build highly concurrent, distributed, and resilient message-driven applications on the JVM

playframework

The Community Maintained High Velocity Web Framework For Java and Scala.

gitbucket

A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility

enso

Hybrid visual and textual functional programming.

finagle

A fault tolerant, protocol-agnostic RPC system

CMAK

CMAK is a tool for managing Apache Kafka clusters

ArnoldC

Arnold Schwarzenegger based programming language

snowplow

The enterprise-grade behavioral data engine (web, mobile, server-side, webhooks), running cloud-natively on AWS and GCP

snowflake

Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees.

linkerd

Old repo for Linkerd 1.x. See the linkerd2 repo for Linkerd 2.x.

gatling

Modern Load Testing as Code

frontend

The Guardian DotCom.

openwhisk

Apache OpenWhisk is an open source serverless cloud platform

scala3

The Scala 3 compiler, also known as Dotty.

scala-js

Scala.js, the Scala to JavaScript compiler

scala-native

Your favorite language gets closer to bare metal.

chronos

Fault tolerant job scheduler for Mesos which handles dependencies and ISO8601 based schedules

aerosolve

A machine learning package built for humans.

sbt

sbt, the interactive build tool

scalaz

Principled Functional Programming in Scala

cats

Lightweight, modular, and extensible library for functional programming.

marathon

Deploy and manage containers (including Docker) on top of Apache Mesos at scale.

fpinscala

Code, exercises, answers, and hints to go along with the book "Functional Programming in Scala"

diffy

Find potential bugs in your services with Diffy

flockdb

A distributed, fault-tolerant graph database

shapeless

Generic programming for Scala

scalding

A Scala API for Cascading

kestrel

simple, distributed message queue system (inactive)

atlas

In-memory dimensional time series database.

breeze

Breeze is a numerical processing library for Scala.

scalatra

Tiny Scala high-performance, async web framework, inspired by Sinatra

zio

ZIO — A type-safe, composable library for async and concurrent programming in Scala

SynapseML

Simple and Distributed Machine Learning

flix

The Flix Programming Language

spray

A suite of scala libraries for building and consuming RESTful web services on top of Akka: lightweight, asynchronous, non-blocking, actor-based, testable

Ammonite

Scala Scripting

gizzard

[Archived] A flexible sharding framework for creating eventually-consistent distributed datastores

s3_website

Manage an S3 website: sync, deliver via CloudFront, benefit from advanced S3 website features.

slick

Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala

scaloid

Scaloid makes your Android code easy to understand and maintain.

finatra

Fast, testable, Scala services built on TwitterServer and Finagle

elasticmq

In-memory message queue with an Amazon SQS-compatible interface. Runs stand-alone or embedded.

algebird

Abstract Algebra for Scala

util

Wonderful reusable code from Twitter

circe

Yet another JSON library for Scala

textteaser

TextTeaser is an automatic summarization algorithm.

chisel

Chisel: A Modern Hardware Design Language

XiangShan

Open-source high-performance RISC-V processor

http4s

A minimal, idiomatic Scala interface for HTTP

zio-quill

Compile-time Language Integrated Queries for Scala

fs2

Compositional, streaming I/O library for Scala

coursier

Pure Scala Artifact Fetching

summingbird

Streaming MapReduce with Scalding and Storm

sangria

Scala GraphQL implementation

scio

A Scala API for Apache Beam and Google Cloud Dataflow.

metals

Scala language server with rich IDE features 🚀

spark-nlp

State of the Art Natural Language Processing

lagom

Reactive Microservices for the JVM

scalacheck

Property-based testing for Scala

doobie

Functional JDBC layer for Scala.

spark-jobserver

REST job server for Apache Spark

monix

Asynchronous, Reactive Programming for Scala and Scala.js.

spire

Powerful new number types and numeric abstractions for Scala.

mill

Your shiny new Java/Scala build tool!

Vale

Compiler for the Vale programming language - http://vale.dev/

deequ

Deequ is a library built on top of Apache Spark for defining "unit tests for data", which measure data quality in large datasets.

giter8

a command line tool to apply templates defined on GitHub

goose

Html Content / Article Extractor in Scala - open sourced from Gravity Labs

refined

Refinement types for Scala

sbt-native-packager

sbt Native Packager

scalajs-react

Facebook's React on Scala.JS

scala-exercises

The easy way to learn Scala.

Monocle

Optics library for Scala

metarank

A low code Machine Learning personalized ranking service for articles, listings, search results, recommendations that boosts user engagement. A friendly Learn-to-Rank engine

finch

Scala combinator library for building Finagle HTTP services

TransmogrifAI

TransmogrifAI (pronounced trăns-mŏgˈrə-fī) is an AutoML library for building modular, reusable, strongly typed machine learning workflows on Apache Spark with minimal hand-tuning

node2vec

rocket-chip

Rocket Chip Generator

rsc

Experimental Scala compiler focused on compilation speed

TheHive

TheHive: a Scalable, Open Source and Free Security Incident Response Platform

spark

Lightning-fast cluster computing in Java, Scala and Python.

elastic4s

Elasticsearch Scala Client - Reactive, Non Blocking, Type Safe, HTTP Client

scalafmt

Code formatter for Scala

objc2swift

Open Source Obj-C to Swift Converter.

json4s

intellij-haskell

IntelliJ plugin for Haskell

postgresql-async

Async, Netty based, database drivers for PostgreSQL and MySQL written in Scala

better-files

Simple, safe and intuitive Scala I/O

Binding.scala

Reactive data-binding for Scala

iago

A load generator, built for engineers

cats-effect

The pure asynchronous runtime for Scala

spark-cassandra-connector

DataStax Connector for Apache Spark to Apache Cassandra

Metascala

A JVM written in Scala

twitter

Scala, Java, JavaScript

apache

Java, HTML, JavaScript

typelevel

Scala, Shell, Nix

scala

Scala, Shell, HTML

twitter-archive

Scala, Java, JavaScript

akka

Scala, Java, CSS

sbt

Scala, Java, HTML

prisma

TypeScript, JavaScript, Rust

playframework

Scala, Java, CSS

lichess-org

Rust, TypeScript, Scala

zio

Scala, JavaScript, TypeScript

softwaremill

Scala, Java, TypeScript

yahoo

JavaScript, Java, Python

com-lihaoyi

rtyley

Java, Scala, Python

databricks

Python, Scala, HCL

gitbucket

Scala, Shell, Java

guardian

Scala, JavaScript, TypeScript

chipsalliance

Scala, Python, Verilog

snowplow

Scala, Shell, Go

enso-org

JavaScript, Rust, HTML

lhartikk

JavaScript, Java, Python

gatling

Scala, Java, Shell

mesos

Java, Go, Scala

scalameta

Scala, TypeScript, Java