Android App GitHub Repositories (2026) · Open Source Tools

Dynamic Island for Android. Notifications, music, calls, charging and more. Kotlin + Jetpack Compose + Material 3.

One UI-inspired alarm app for Android. Focuses on deep customization and feature rich

Free, ad-free Android PDF toolkit: turn photos, Word, PowerPoint and EPUB into PDFs; merge, split, reorganize, rotate, edit, sign, watermark, number, compress, flatten and redact PDFs. Works offline, no tracking, no account, no uploads. OCR in English, French, Spanish and Hindi.

Open-source music player for Android for Spotify, YouTube Music and local files, music only: no podcasts, videos or Canvas. Uses Spotify's own Android protocols, documented in protocol/.

Open-source Android assistant that replaces Gemini. Summon it by gesture, bring your own API key, and it reads the screen, taps through apps and runs scripts. No backend, no telemetry.

CR-BYOB (Bring-Your-Own-Bridge) is a DIY Scan Bridge for Creality 3D scanners, running on an Android phone (unofficial/community)

Foldable first Mihon/Tachiyomi fork. Mihon for foldables, with a page curl that follows your finger

Privacy-first Tasker-style automation for Android. Local if/then rules, no cloud, no trackers. Optional Shizuku/root. FOSS.

Open-source Android app for the Amazfit Helio Strap: a private, local-first Zepp alternative. Sleep, HR, HRV, SpO2, recovery scores, no cloud or trackers.

MeshPilot: independent open-source Android client for your own MeshCentral server (not affiliated with the MeshCentral project). Signed APKs in Releases.

A fast, private expense tracker for Android: log a spend in two taps, see what's safe to spend today, and plan ahead. Data stays on your phone.

Automatically switch Android's Private DNS (DNS-over-TLS) based on the app you open. No VPN, no tracking, open source.

Send books from your Android phone to KOReader over Wi-Fi. No computer, no cables.

An open-source Android utility for Shizuku, ADB, and Dhizuku workflows, with tools for Android phones, Android TV, and Wear OS.

Android client for Downtify

Music player for Android with optional cloud sync. This repository holds the source of the Offline version.

Agentic ✧ Gemma Inference for Android System Intelligence

Mobile app for Pixelfed and Vernissage

Multiplatform app for Android and Desktop for removing tracking parameters from shared URLs

Local-only Android keyboard for power users. Unlimited clipboard history w/search & tags, todos, in-house swipe engine, configurable autocorrect, diy themes, TrackPoint cursor nav, 8 subkeys per key, offline gif support, 0 non-native deps.