kotlin

microg/GmsCore

microG: Running Google Play Services Apps Without Google — microG reimplements Google Play Services APIs—push notifications, maps, auth, geolocation—as free software, letting apps built for Play Services run on devices without Google's proprietary blobs. It's long used by de-Googled Android ROMs and privacy-focused setups, and remains actively maintained with ongoing translation support.

Free implementation of Play Services

AAswordman/Operit

The most powerful AI agent and AI chat software on Android/Operit是一款Android上能力最为强大、发展最久的AI Agent

florisboard/florisboard

An open-source keyboard for Android which respects your privacy. Currently in beta.

sameerasw/essentials

Essential tools and mods for Android nerds

nobodywho-ooo/nobodywho

On-device LLM engine bridging Godot, Flutter, Python and more — NobodyWho is a Rust inference engine for running chat LLMs fully offline, with typed tool calling, multimodal input, plus local TTS/STT/VAD via llama.cpp and ONNX Runtime. Bindings cover Godot, Python, Flutter, Kotlin, Swift and React Native, aimed at game and app developers wanting on-device AI without APIs.

NobodyWho is an inference engine that lets you run LLMs locally and efficiently on any device.

WSTxda/SwitchAI

Easily select, start, and manage your preferred AI digital assistants on Android.

mokshablr/gander

A 5 MB Android viewer that can't phone home — Gander opens PDF, Word, Excel, PowerPoint, ODT, RTF, ZIP, STL, photos, video, audio, Markdown and code entirely on-device. It skips the INTERNET permission outright, so it cannot leak files to cloud services like many bundled viewers do. Good fit for privacy-conscious Android users wanting one small, ad-free app instead of several.

Take a gander at any file. Offline, zero-permission Android viewer for PDF, Word, Excel, PowerPoint, ODT, RTF, ZIP, STL, photos, video, audio, Markdown and code.

Anthonyy232/Paperize

Paperize is a modern fully offline dynamic wallpaper changer application built for Android using Kotlin, Jetpack Compose, and Material 3

Karna14314/Pdf_Tools

Privacy-first, offline PDF editor for Android. Merge, split, compress, convert and annotate PDFs — 100% on-device, no internet required.

mardous/BoomingMusic

Clean, fast, and Material-driven Android music player with powerful features.

SilentCoderHere/aihub

All-in-one Kotlin app that aggregates multiple AI assistants in a single tabbed interface, featuring webview integration, Material Design 3, and persistent session management.

Chethan616/ClearPDF

Open-source Android PDF and document toolkit with PDF tools, Office viewing, XLSX editing, scanning, and image editing. Built with Kotlin and Jetpack Compose.

DanielRendox/RoutineTracker

An Android planner calendar app and a habit tracker that aims to simplify scheduling consistent activities and tracking your progress.

montafra/beam

Beam is an Android app that displays real-time battery metrics as a persistent notification

gonzaroman/acornix

No code app creator, AI app generator, Free AI App builder for Android , AI Game Builder, AI coding assistant, AI App builder for Android, create apps from voice, Vibe Code APK download, Vibe coding mobile game, Vibe code app builder, Voice to app generator

jhaiian/ClintGecko

Android Firefox-based browser with ADM, media capture, and extensions

AlexandrosAlexiou/kotlin.nvim

Extensions for JetBrains' Kotlin LSP support in Neovim

bl3xand/APK-Toolbox

Track, clone, install and merge Android apps right on the phone: updates straight from GitHub, F-Droid and other sources, second copies of apps, split APK installer, APKS export and split merging. No root.

SysAdminDoc/CallShield

Open-source spam call and text blocker for Android. GitHub-hosted spam database, no API keys, no subscriptions.

sumitkumartiwari19-sudo/SKT-music-player

SKT Music Player is a modern offline Android music player with a beautiful Material Design UI, fast performance, playlist support, lyrics, and smooth playback.

mini-page/Cleanify

A modern, powerful and feature-rich media management app for Android featuring a swipe-to-sort interface and advanced duplicate/similar media detection & many more, forked from CleanSweep

chmouel/noise-timer

Calming white, pink, and brown noise with a sleep timer, a small, private, open-source Android app

Ccroxx1/Glassplayer-By-Prosper-Sasuu

A modern glassmorphic Android music player built with Jetpack Compose, Media3 ExoPlayer, background playback, playlists, folders, search, equalizer, and sleep timer.