Kotlin GitHub Repositories (2026) · Open Source Tools

The most advanced ORM of JVM, for both java & kotlin

Nostr client for Android

Kotlin wrappers for popular JavaScript libraries

Pick and save Files, Medias and Folder for Kotlin Multiplatform / KMP and Compose Multiplatform / CMP

Next-Gen YouTube Music Client with Liquid Glass UI , Algorithmic Smart Playlist Generator, Real-Time Synced Lyrics & Universal Last.fm Scrobbler for Android.

Minimalist, data-oriented pomodoro timer for Android and Desktop based on Material 3 Expressive

Kiwix for Android

A modern, native Android Jellyfin client built with Kotlin, Jetpack Compose, Material 3, and LibMPV.

Wireless CarPlay in your browser — a server-side receiver that turns any screen on your network into a head unit.

All-in-on podcast app for RSS, media dl & play. MVI arch, Material You style. ⭐️ Star to support!

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.

BuildConfig for Kotlin Multiplatform Project

🔨 A Simple todo list and habit tracker for Android

An artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.

Official GanttProject repository.

🍫 Chocola is a cute and powerful offline music player for Android!

Skills for Kotlin, Jetpack Compose, and Android development

Kotlin DataFrame: typesafe in-memory structured data processing for JVM

Monica Pass，Password Management, 2FA Generator

LeanType is an Open-source keyboard, fork of HeliBoard with additional features and customisation