Kotlin

chrome-devtools-kotlinjoffrey-bion/chrome-devtools-kotlin

A multiplatform Kotlin client for the Chrome DevTools Protocol using coroutines and code generation.

Medeia Validatorworldturner/medeia-validator

A streaming JSON Schema validator for Java/Kotlin JVM applications, supporting drafts 04, 06, and 07 with Jackson and Gson.

Tensorflow-lite-kotlin-samplesSunitRoy2703/Tensorflow-lite-kotlin-samples

Kotlin implementations of TensorFlow Lite example Android apps for on-device machine learning.

Elm Architecture in Androidglung/elm-architecture-android

A demonstration of the ELM architecture pattern implemented on Android using Kotlin and Anko.

Shutter-Androidlevibostian/Shutter-Android

An Android library for easily capturing photos/videos via camera or selecting them from the gallery.

samples portjvm-graphics-labs/Vulkan

A comprehensive collection of open-source Kotlin examples and demos for the Vulkan graphics and compute API.

Gradientsbakhtiyork/gradients

A curated collection of splendid linear gradients for Android, ported from webgradients.com and implemented in Kotlin.

Cassandra-Migrationhhandoko/cassandra-migration

A lightweight Apache Cassandra database schema migration library inspired by Flyway, supporting CQL and Java migrations.

Example using event bus and service proxies to connect vertx and nodeadvantageous/vertx-node-ec2-eventbus-example

Proof-of-concept demonstrating Vert.x and Node.js integration via the Vert.x Event Bus bridge with clustering in AWS EC2.

Native PurchasesCap-go/capacitor-native-purchases

A Capacitor plugin for implementing in-app purchases and subscriptions using native iOS StoreKit 2 and Android Google Play Billing 7.x APIs.

Place Dialogpinkfish/flutter_places_dialog

A Flutter plugin that displays a Google Places picker dialog on iOS and Android, returning selected place details to the app.

Firecoilrosariopfernandes/firecoil

Load images from Firebase Cloud Storage in Android apps using the Coil image loading library.

LLMCap-go/capacitor-llm

Capacitor plugin for running LLM models locally on iOS and Android, supporting Apple Intelligence and MediaPipe.

Kotlin VIPER exampleOmiSoftNet/AndroidViperTemplate

A detailed Android sample app implementing VIPER architecture with Kotlin, Dagger 2, Retrofit, and RxJava.

msdf-gdxmaltaisn/msdf-gdx

A lightweight LibGDX library for rendering sharp, scalable text using multi-channel signed distance field (MSDF) fonts.

Reactoroky2abbas/reactor

A fast and secure key-value library for Android with embedded JSON-based storage, serving as an alternative to Shared Preferences.

Vert.x shellvert-x3/vertx-shell

A command-line shell for interacting with and managing Vert.x applications.

eosreach-androidmemtrip/eosreach-android

A native Android EOS wallet built with Kotlin and the MVI pattern, serving as a blueprint for blockchain app development.

Aleksaphxql/aleksa

A Kotlin framework for building Alexa Skills with embedded Jetty server, TLS, and development tools.

Playlistphiamo/capacitor-plugin-playlist

A Capacitor plugin for cross-platform audio playlists with background playback and lock screen controls.

PocketRxKotlin/Pocket

A Kotlin Android app for saving links with tagging and weekly export to Evernote.

HTTP Builder NG Gradle Pluginhttp-builder-ng/gradle-http-plugin

A Gradle plugin for defining tasks that make HTTP requests using the HttpBuilder-NG client library.

gradletypelead/gradle-eta

A Gradle plugin for building Eta programming language projects using the Etlas build tool.

NullKiabad-antics/nullkia

A comprehensive mobile security framework for device exploitation, bootloader unlocking, firmware analysis, and cellular security research across 18 manufacturers.

Godot Google Play Games ServicesIakobs/godot-google-play-game-services-android-plugin

Android plugin for Godot 3.5+ to integrate Google Play Game Services v2 features like achievements, leaderboards, and player sign-in.

FireXtensionsrosariopfernandes/firextensions

Unofficial Kotlin extension functions for the Firebase Android SDK (now deprecated).

Screen RecorderCap-go/capacitor-screen-recorder

A Capacitor plugin for recording device screens natively on iOS and Android with optional audio.

TFProfileriglaweb/TFProfiler

Profile TensorFlow Lite and OpenCV DNN models on Android devices with performance metrics and delegate options.

Brother Printrdlabo-team/capacitor-brotherprint

A Capacitor plugin for printing to Brother label and thermal printers on iOS and Android.

FalconLibraryFRC5190/FalconLibrary

A Kotlin-based robotics library for FIRST Robotics Competition with type-safe units, matrix operations, and vendor wrappers.

Nova Substrate SDK Androidnova-wallet/substrate-sdk-android

Native Android SDK for building mobile apps for Substrate-based blockchains like Polkadot and Kusama.

HealthCap-go/capacitor-health

A Capacitor plugin for reading and writing health data from Apple HealthKit and Google Health Connect.

Katalystaedans/Katalyst

Kotlin recursion schemes library built with Arrow, providing functional programming abstractions for recursive data structures.

Fearless Utils Androidsoramitsu/fearless-utils-Android

A native Android library for building mobile apps on Substrate networks like Polkadot and Kusama.

Keyboard Visibility Eventviniciusmo/keyboard-visibility-event-android

A Kotlin DSL for handling Android soft keyboard visibility change events with a clean, declarative API.

Tellerlevibostian/Teller-Android

Android library that manages cached data state, fetching, and synchronization for offline-first mobile apps.