This is a curated collection of open-source Android applications. Exploring open-source projects is a great way to discover high-quality apps and enhance your development skills. This project was inspired by open-source-ios-apps.
We are always looking for new and awesome projects! You are welcome to star and fork this repository. If you know of an app that isn't listed here, please feel free to submit a Pull Request or use our Add App Workflow. All applications are organized into specific categories for easy navigation.
| App Name | Description | ⭐ Stars |
|---|---|---|
| Joplin | A markdown-based note-taking app with sync and end-to-end encryption. | 52.6k |
| v2rayNG | A V2Ray client for Android, supporting Xray and v2fly cores. | 48.5k |
| Termux | A powerful terminal emulator and Linux environment for Android. | 48.0k |
| Rocket.Chat | A self-hostable, Slack-like online chat platform. | 44.1k |
| Shadowsocks | A secure socks5 proxy client, widely used for bypassing network censorship. | 36.5k |
| NewPipe | A lightweight, privacy-friendly YouTube frontend for Android. | 36.0k |
| Barcode Scanner (ZXing) | The official app for the popular open-source barcode scanning library. | 33.8k |
| Telegram | The official, open-source Android client for the Telegram messaging service. | 28.2k |
| Signal | A private messenger for secure calling and messaging. | 28.0k |
| SmartTubeNext | An ad-free client for watching YouTube on Android TV boxes, with a built-in updater. | 27.1k |
| Mindustry | A sandbox tower-defense game with resource management. | 26.0k |
| ExoPlayer | An extensible media player for Android from Google. | 21.9k |
| Google I/O | The official open-source app for the Google I/O conference. | 21.7k |
| BookStack | A self-hosted platform for storing and organizing information and documentation. | 17.9k |
| Plaid | A beautiful showcase of Material Design that pulls news from Dribbble & Product Hunt. | 16.2k |
| Obtainium | Get app updates directly from their source (e.g., GitHub, F-Droid). | 14.0k |
| UniversalMusicPlayer | A Google sample demonstrating a cross-platform audio media app. | 13.2k |
| K-9 Mail | An advanced, open-source email client for Android. | 12.9k |
| Organic Maps | A privacy-focused, offline maps app for travelers, tourists, hikers, and cyclists. | 12.4k |
| Minetest | An open-source infinite-world block sandbox game with survival and crafting. | 12.2k |
| Aegis Authenticator | A free, secure, and open-source app to manage your 2-step verification tokens. | 11.6k |
| AnkiDroid | A powerful, intelligent flashcard app that uses spaced repetition. | 10.4k |
| Category | Description | Count |
|---|---|---|
| 📺 Android TV | Applications optimized for Android TV. | 4 |
| ⌚ Android Wear | Applications for Android Wear/Wear OS. | 14 |
| 💼 Business | Tools for business management and productivity. | 2 |
| 💬 Communication | Messengers, email clients, and social tools. | 31 |
| 🎓 Education | Learning platforms and educational resources. | 21 |
| 💰 Finance | Budgeting, banking, and financial management. | 11 |
| 🎮 Game | Open-source games for Android. | 37 |
| 🏥 Health & Fitness | Wellness, tracking, and fitness apps. | 8 |
| 🏠 LifeStyle | Apps for daily life and personal habits. | 11 |
| 🎬 Multi-Media | Video players, music apps, and editors. | 59 |
| 📰 News & Magazines | RSS readers and news aggregators. | 37 |
| 🎨 Personalization | Launchers, wallpapers, and UI tweaks. | 18 |
| 📈 Productivity | Note-taking, task management, and office tools. | 47 |
| 🌐 Social Network | Clients for popular social platforms. | 58 |
| 🛠️ Tools | Utilities, system tools, and keyboards. | 125 |
| 🗺️ Travel & Local | Maps, navigation, and travel guides. | 17 |
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