17 open source projects written in Kotlin
Every Kotlin project in the registry, ranked by GitHub stars — license and last push on every entry, data pulled live from the GitHub API every night.
Signal ★ 29K Private messaging with end-to-end encryption
rikkahub ★ 7.7K RikkaHub is an Android APP that supports for multiple LLM providers.
gradle-play-publisher ★ 4.3K GPP is Android's unofficial release automation Gradle Plugin. It can do anything from building, uploading, and then promoting your App Bundle or APK to publishi
android ★ 3.9K Home Assistant Companion for Android
apps-android-wikipedia ★ 3.0K 📱The official Wikipedia app for Android!
SeriesGuide ★ 2.2K Track your TV shows and movies on Android
CatchUp ★ 2.1K An app for catching up on things.
ort ★ 2.1K A suite of tools to automate software compliance checks.
appshark ★ 1.8K Appshark is a static taint analysis platform to scan vulnerabilities in an Android app.
gradle-maven-publish-plugin ★ 1.7K A Gradle plugin that publishes your Android and Kotlin libraries, including sources and javadoc, to Maven Central or any other Nexus instance.
amethyst ★ 1.6K Nostr client for Android
2FAS ★ 1.5K Local-first 2FA authenticator and password manager
Showly ★ 1.5K Track TV shows and movies, synced with Trakt.tv
M3UAndroid ★ 1.3K a clean, practical, ad-free IPTV app
hammer-editor ★ 744 A simple tool for building stories.
kuvasz ★ 631 Kuvasz (pronounce as [ˈkuvɒs]) is an open-source uptime and SSL monitoring service, with multiple notification channels, status pages, IAC support via YAML, Pro
paralino ★ 62 ← all stacks · or see best-of lists
Frequently asked questions
How many open source projects are written in Kotlin?
This registry tracks 17 Kotlin projects, with 65,374 GitHub stars between them and a median of 1,751 stars. The most-adopted is Signal at 29,352 stars.
Which Kotlin projects are most actively maintained?
17 of the 17 projects were pushed in the last 90 days. Each entry above shows its exact last-push date, so you can filter out dormant projects before committing to one.
What licence are Kotlin projects usually under?
16 of the 17 carry an explicit open-source licence across 4 distinct licences, and the licence is shown on every card. Permissive licences (MIT, Apache-2.0) are the safest default for commercial use; check the copyleft ones individually.
Should I use Kotlin or Java for my project?
Both are viable. Kotlin is the better default if your team already knows it or the libraries you need are written in it; Java may suit you better if you need the ecosystem, tooling or performance profile it is known for. The registry lists 17 Kotlin projects to work from.