πŸ‡©πŸ‡ͺ Made in Germany

Discover Germany's Leading Open Source Projects: Explore top-notch open source initiatives hailing from the vibrant tech community of Germany.

TOP Kotlin Projects

1
JetBrains/kotlin

JetBrains/kotlin

The Kotlin Programming Language.
Kotlin
48,745
star
2
JetBrains/compose-multiplatform

JetBrains/compose-multiplatform

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
Kotlin
16,179
star
3
JetBrains/Exposed

JetBrains/Exposed

Kotlin SQL Framework
Kotlin
8,296
star
4
JetBrains/ideavim

JetBrains/ideavim

IdeaVim – A Vim engine for JetBrains IDEs
Kotlin
7,980
star
5
JetBrains/kotlin-native

JetBrains/kotlin-native

Kotlin/Native infrastructure
Kotlin
7,026
star
6
Gurupreet/ComposeCookBook

Gurupreet/ComposeCookBook

A Collection on all Jetpack compose UI elements, Layouts, Widgets and Demo screens to see it's potential
Kotlin
6,293
star
7
android10/Android-CleanArchitecture-Kotlin

android10/Android-CleanArchitecture-Kotlin

This is a movies sample app in Kotlin, which is part of a serie of blog posts I have written about architecting android application using different approaches.
Kotlin
4,686
star
8
kizitonwose/Calendar

kizitonwose/Calendar

A highly customizable calendar view and compose library for Android and Kotlin Multiplatform.
Kotlin
4,558
star
9
simondankelmann/Bluetooth-LE-Spam

simondankelmann/Bluetooth-LE-Spam

Kotlin
3,864
star
10
Foso/Jetpack-Compose-Playground

Foso/Jetpack-Compose-Playground

Community-driven collection of Jetpack Compose example code and tutorials πŸš€ https://foso.github.io/compose
Kotlin
3,132
star
11
JetBrains/intellij-platform-plugin-template

JetBrains/intellij-platform-plugin-template

Template repository for creating plugins for IntelliJ Platform
Kotlin
3,048
star
12
JetBrains/kotlinconf-app

JetBrains/kotlinconf-app

KotlinConf Schedule Application
Kotlin
2,967
star
13
ingokegel/jclasslib

ingokegel/jclasslib

jclasslib bytecode editor is a tool that visualizes all aspects of compiled Java class files and the contained bytecode.
Kotlin
2,748
star
14
ahmedeltaher/MVVM-Kotlin-Android-Architecture

ahmedeltaher/MVVM-Kotlin-Android-Architecture

MVVM + Kotlin + Retrofit2 + Hilt + Coroutines + Kotlin Flow + mockK + Espresso + Junit5
Kotlin
2,392
star
15
tarek360/RichPath

tarek360/RichPath

πŸ’ͺ Rich Android Path. 🀑 Draw as you want. πŸŽ‰ Animate much as you can.
Kotlin
2,331
star
16
PaulWoitaschek/Voice

PaulWoitaschek/Voice

Minimalistic audiobook player
Kotlin
2,067
star
17
UweTrottmann/SeriesGuide

UweTrottmann/SeriesGuide

Track your favorite TV shows and movies on Android devices.
Kotlin
1,951
star
18
seemoo-lab/AirGuard

seemoo-lab/AirGuard

Protect yourself from being tracked 🌍 by AirTags 🏷 and Find My accessories πŸ“
Kotlin
1,904
star
19
JetBrains/compose-multiplatform-ios-android-template

JetBrains/compose-multiplatform-ios-android-template

Compose Multiplatform iOS+Android Application project template
Kotlin
1,600
star
20
JetBrains/lets-plot

JetBrains/lets-plot

Multiplatform plotting library based on the Grammar of Graphics
Kotlin
1,559
star
21
Foso/Ktorfit

Foso/Ktorfit

HTTP client generator / KSP plugin for Kotlin Multiplatform (Android, iOS, Js, Jvm, Native) using KSP and Ktor clients inspired by Retrofit https://foso.github.io/Ktorfit
Kotlin
1,545
star
22
vanniktech/Emoji

vanniktech/Emoji

A library to add Emoji support to your Android / iOS / JVM Application
Kotlin
1,523
star
23
jmfayard/refreshVersions

jmfayard/refreshVersions

Life is too short to google for dependencies and versions
Kotlin
1,510
star
24
MortezaBashsiz/CFScanner

MortezaBashsiz/CFScanner

Cloud Flare scanner
Kotlin
1,466
star
25
timschneeb/tachiyomi-extensions-revived

timschneeb/tachiyomi-extensions-revived

Revival of removed source extensions for the Tachiyomi app.
Kotlin
1,455
star
26
JetBrains/intellij-platform-gradle-plugin

JetBrains/intellij-platform-gradle-plugin

Gradle plugin for building plugins for IntelliJ-based IDEs
Kotlin
1,426
star
27
markusfisch/BinaryEye

markusfisch/BinaryEye

Yet another barcode scanner for Android
Kotlin
1,381
star
28
CCBlueX/LiquidBounce

CCBlueX/LiquidBounce

A free mixin-based injection hacked client for Minecraft using the Fabric API
Kotlin
1,351
star
29
vanniktech/gradle-dependency-graph-generator-plugin

vanniktech/gradle-dependency-graph-generator-plugin

Gradle plugin that generates dependency graphs from your project.
Kotlin
1,343
star
30
JetBrains/kotlin-wrappers

JetBrains/kotlin-wrappers

Kotlin wrappers for popular JavaScript libraries
Kotlin
1,339
star
31
JetBrains/idea-gitignore

JetBrains/idea-gitignore

.ignore support plugin for IntelliJ IDEA
Kotlin
1,290
star
32
vanniktech/gradle-maven-publish-plugin

vanniktech/gradle-maven-publish-plugin

A Gradle plugin that publishes your Android and Kotlin libraries, including sources and javadoc, to Maven Central or any other Nexus instance.
Kotlin
1,252
star
33
JetBrains/projector-server

JetBrains/projector-server

Server-side library for running Swing applications remotely
Kotlin
1,246
star
34
JetBrains/kotless

JetBrains/kotless

Kotlin Serverless Framework
Kotlin
1,147
star
35
oss-review-toolkit/ort

oss-review-toolkit/ort

A suite of tools to assist with reviewing Open Source Software dependencies.
Kotlin
1,115
star
36
Mauker1/MaterialSearchView

Mauker1/MaterialSearchView

Android Search View based on Material design guidelines.
Kotlin
1,079
star
37
JetBrains/amper

JetBrains/amper

Amper - a project configuration and build tool with a focus on the user experience and the IDE support
Kotlin
995
star
38
kizitonwose/Time

kizitonwose/Time

Type-safe time calculations in Kotlin, powered by generics.
Kotlin
967
star
39
maxkeppeler/sheets

maxkeppeler/sheets

⭐ β€Žβ€Žβ€Žβ€β€β€Ž β€ŽOffers a range of beautiful sheets (dialogs & bottom sheets) for quick use in your project. Includes many ways to customize sheets.
Kotlin
917
star
40
MarkusAmshove/Kluent

MarkusAmshove/Kluent

Fluent Assertion-Library for Kotlin
Kotlin
866
star
41
JetBrains/android

JetBrains/android

Android Plugin for IntelliJ IDEA. This repository is a subset of https://git.jetbrains.org/?p=idea/android.git cut according to GitHub file size limitations.
Kotlin
863
star
42
AkshayChordiya/News

AkshayChordiya/News

A sample News πŸ—ž app built using Modern Android Development [Architecture Components, Coroutines, Retrofit, Room, Kotlin, Dagger]
Kotlin
846
star
43
SimonSchubert/LinuxCommandLibrary

SimonSchubert/LinuxCommandLibrary

1M+ downloads Linux reference app with basics, tips and formatted man pages
Kotlin
823
star
44
ligi/SurvivalManual

ligi/SurvivalManual

Libre Survival Manual for Android with offline in mind
Kotlin
815
star
45
JetBrains/projector-client

JetBrains/projector-client

Common and client-related code for running Swing applications remotely
Kotlin
806
star
46
maxkeppeler/sheets-compose-dialogs

maxkeppeler/sheets-compose-dialogs

✨ Enhancing Android UIs: A Jetpack Compose Library supporting a wide range of common use-cases with Material Design 3 Dialogs, Popups, and Bottom Sheets. ✨
Kotlin
750
star
47
ligi/PassAndroid

ligi/PassAndroid

Android App to view passes
Kotlin
748
star
48
valentjn/ltex-ls

valentjn/ltex-ls

LTeX Language Server: LSP language server for LanguageTool πŸ”βœ”οΈ with support for LaTeX πŸŽ“, Markdown πŸ“, and others
Kotlin
734
star
49
aclassen/ComposeReorderable

aclassen/ComposeReorderable

Enables reordering by drag and drop in Jetpack Compose (Desktop) LazyList & LazyGrid.
Kotlin
733
star
50
cryptomator/android

cryptomator/android

Cryptomator for Android
Kotlin
722
star
51
JetBrains/jewel

JetBrains/jewel

An implementation of the IntelliJ look and feels in Compose for Desktop
Kotlin
709
star
52
freeletics/FlowRedux

freeletics/FlowRedux

Kotlin Multiplatform Statemachine library with nice DSL based on Flow from Kotlin Coroutine's.
Kotlin
706
star
53
imandolatkia/Android-Animated-Theme-Manager

imandolatkia/Android-Animated-Theme-Manager

create your custom themes and change them dynamically with ripple animation
Kotlin
699
star
54
JetBrains/markdown

JetBrains/markdown

Markdown parser written in kotlin
Kotlin
691
star
55
Gurupreet/ComposeSpotifyDesktop

Gurupreet/ComposeSpotifyDesktop

Spotify Demo Desktop app using Jetpack compose
Kotlin
683
star
56
QuickBirdEng/opencv-android

QuickBirdEng/opencv-android

Easy way to integrate OpenCv into your Android project via Gradle
Kotlin
673
star
57
pocmo/recompose

pocmo/recompose

recompose is a tool for converting Android layouts in XML to Kotlin code using Jetpack Compose.
Kotlin
672
star
58
tschuchortdev/kotlin-compile-testing

tschuchortdev/kotlin-compile-testing

A library for testing Kotlin and Java annotation processors, compiler plugins and code generation
Kotlin
660
star
59
jwstegemann/fritz2

jwstegemann/fritz2

Easily build reactive web-apps in Kotlin based on flows and coroutines.
Kotlin
656
star
60
tejado/android-usb-gadget

tejado/android-usb-gadget

Convert your Android phone to any USB device you like! USB Gadget Tool allows you to create and activate USB device roles, like a mouse or a keyboard. πŸ› πŸ›‘πŸ“±
Kotlin
654
star
61
Tobi823/ffupdater

Tobi823/ffupdater

FFUpdater: Updater for privacy friendly browser
Kotlin
638
star
62
JetBrains/compose-multiplatform-template

JetBrains/compose-multiplatform-template

Compose Multiplatform Application project template
Kotlin
623
star
63
runningcode/gradle-doctor

runningcode/gradle-doctor

The right prescription for your Gradle build.
Kotlin
610
star
64
openhab/openhab-android

openhab/openhab-android

openHAB client for Android
Kotlin
599
star
65
philipplackner/CleanArchitectureNoteApp

philipplackner/CleanArchitectureNoteApp

Kotlin
594
star
66
pemistahl/lingua

pemistahl/lingua

The most accurate natural language detection library for Java and the JVM, suitable for long and short text alike
Kotlin
590
star
67
Almighty-Alpaca/JetBrains-Discord-Integration

Almighty-Alpaca/JetBrains-Discord-Integration

Discord rich presence integration for all JetBrains IDEs
Kotlin
581
star
68
JetBrains/lincheck

JetBrains/lincheck

Framework for testing concurrent data structures
Kotlin
576
star
69
freeletics/RxRedux

freeletics/RxRedux

Redux implementation based on RxJava
Kotlin
568
star
70
holgerbrandl/krangl

holgerbrandl/krangl

krangl is a {K}otlin DSL for data w{rangl}ing
Kotlin
563
star
71
rubensousa/Decorator

rubensousa/Decorator

Decorator is an Android library that helps creating composable margins and dividers in RecyclerViews
Kotlin
533
star
72
newhinton/disky

newhinton/disky

An android filesystem analyzer that can show you the usage of your storage!
Kotlin
528
star
73
nuhkoca/kotlin-modular-tdd-coroutines-mvvm

nuhkoca/kotlin-modular-tdd-coroutines-mvvm

A sample Kotlin app which was built with modular structure, Kotlin DSL, Kotlin Coroutines, TDD and MVVM patterns.
Kotlin
514
star
74
leonlatsch/Photok

leonlatsch/Photok

Encrypted Photo Safe for Android
Kotlin
502
star
75
Faltenreich/SkeletonLayout

Faltenreich/SkeletonLayout

Skeleton view pattern for Android
Kotlin
494
star
76
yuriykulikov/AlarmClock

yuriykulikov/AlarmClock

Most popular open source Android Alarm Clock App
Kotlin
493
star
77
simonpercic/OkLog

simonpercic/OkLog

Network logging interceptor for OkHttp. Logs an URL link with encoded network call data for every OkHttp call.
Kotlin
489
star
78
ollide/intellij-java2smali

ollide/intellij-java2smali

A plugin for IntelliJ IDEA & Android Studio to easily compile Java & Kotlin files to smali.
Kotlin
472
star
79
lukaspieper/Gcam-Services-Provider

lukaspieper/Gcam-Services-Provider

App faking only the absolute necessary Apis to use Gcam without Play Services
Kotlin
463
star
80
vanniktech/RxRiddles

vanniktech/RxRiddles

Riddling your way to masterΒ RxJava
Kotlin
455
star
81
pro100svitlo/FingerprintAuthHelper

pro100svitlo/FingerprintAuthHelper

A small library that allows You to easily manage fingererprint authentication inside your Activity or Fragment on devices with fingerprint scanner and Android M and higher. Min sdk 14
Kotlin
449
star
82
cyb3rko/flashdim

cyb3rko/flashdim

Modern flashlight app with dim functionality on Android 13+
Kotlin
449
star
83
JetBrains/compose-multiplatform-desktop-template

JetBrains/compose-multiplatform-desktop-template

Compose Multiplatform Desktop Application project template
Kotlin
447
star
84
brianegan/bansa

brianegan/bansa

A state container for Java & Kotlin, inspired by Redux & Elm
Kotlin
442
star
85
ricknout/android-mdc-theming

ricknout/android-mdc-theming

Sample code used for a series of Medium posts on Material Components for Android
Kotlin
436
star
86
JetBrains/lets-plot-kotlin

JetBrains/lets-plot-kotlin

Grammar of Graphics for Kotlin
Kotlin
434
star
87
TayfunCesur/CurvedBottomSheet

TayfunCesur/CurvedBottomSheet

Curved-Waved-Animated BottomSheet 😎 It uses Cubic Bezier Curves. This project can be a good start to drawing whatever you want!
Kotlin
424
star
88
VladimirWrites/Lemniscate

VladimirWrites/Lemniscate

An easy way to make your progress view nice and sleek.
Kotlin
424
star
89
JetBrains/java-annotations

JetBrains/java-annotations

Annotations for JVM-based languages.
Kotlin
405
star
90
QuickBirdEng/SurveyKit

QuickBirdEng/SurveyKit

Android library to create beautiful surveys (aligned with ResearchKit on iOS)
Kotlin
386
star
91
saschpe/android-customtabs

saschpe/android-customtabs

Chrome CustomTabs for Android demystified. Simplifies development and provides higher level classes including fallback in case Chrome isn't available on device.
Kotlin
378
star
92
G00fY2/quickie

G00fY2/quickie

πŸ“·πŸ” Android QR code scanning library
Kotlin
374
star
93
noxone/regex-generator

noxone/regex-generator

Generate regular expressions from sample texts.
Kotlin
370
star
94
ahmedeltaher/Prayer-Times-Android-Azan

ahmedeltaher/Prayer-Times-Android-Azan

Prayer + Time + Android + Kotlin + Azan + Library + timezone + islamic + salah + Library aiming to calculate prayer time with one line code , if you implement prayer time application , there is no need to do this headache again .
Kotlin
364
star
95
develar/settings-repository

develar/settings-repository

Supports sharing settings between installations of IntelliJ Platform based products used by the same developer (or team) on different computers
Kotlin
362
star
96
vanniktech/lint-rules

vanniktech/lint-rules

A set of very opinionated lint rules.
Kotlin
353
star
97
VladimirWrites/BLTaxi

VladimirWrites/BLTaxi

πŸš• BL Taxi is a simple app for calling a taxi in the city Banja Luka built using modern Android development tools
Kotlin
350
star
98
sellmair/kompass

sellmair/kompass

Kotlin Multiplatform Router for Android and iOS
Kotlin
346
star
99
vanniktech/gradle-code-quality-tools-plugin

vanniktech/gradle-code-quality-tools-plugin

Gradle plugin that generates ErrorProne, Findbugs, Checkstyle, PMD, CPD, Lint, Detekt & Ktlint Tasks for every subproject.
Kotlin
343
star
100
iurysza/module-graph

iurysza/module-graph

A Gradle Plugin for visualizing your project's structure, powered by mermaidjs
Kotlin
337
star