A curated list of open-source tools for note-taking, file management, task tracking, and enhancing productivity on Android. The list is sorted alphabetically.
| App Name | Description | Language | License | ⭐ Stars | Download |
|---|---|---|---|---|---|
| 1List | A simple app to manage several to-do lists from a single screen. | Kotlin |
MIT |
116 |  |
| Amaze File Manager | A beautiful and feature-rich Material Design file manager for Android. | Kotlin |
GPL-3.0 |
6.1k | |
| Bugzy | A production-ready Fogbugz client for Android, built with Jetpack components. | Java |
MIT |
5 | — |
| Carbon Contacts | An app that lets users find and delete duplicate contacts. | Java |
MIT |
23 | — |
| Card Case | An app to exchange digital business cards with people nearby. (Archived) | Java |
GPL-3.0 |
141 | — |
| Conquer | A simple to-do list application based on Material Design. (Archived) | Java |
Apache-2.0 |
434 | — |
| DevJournal | A journal for developers to jot down ideas, notes, to-dos, and bugs. | Java |
MIT |
19 | — |
| DeviceAnalyzer | Provides detailed insights into your device's hardware specifications. | Java |
MIT |
8 | — |
| EarthViewer | A wallpaper application and showcase for the earthview-android library. |
Java |
Apache-2.0 |
135 | — |
| EverMemo | A fast and simple memo app for recording, organizing, and sharing notes. | Java |
MIT |
796 | — |
| Habitica | A habit tracker that gamifies your goals, treating them like an RPG. | Kotlin |
GPL-3.0 |
1.8k | |
| Habito | A simple habit tracker that uses Firebase Realtime Database. (Archived) | Kotlin |
MIT |
79 | — |
| InstaChat | A chat-head style app that lets you read and reply to messages from any screen. | Java |
Not specified | 118 | — |
| Instalist | A simple application for managing shopping lists. | Java |
Apache-2.0 |
7 | — |
| Joplin | A markdown-based note-taking app with sync and end-to-end encryption. | TypeScript |
MIT |
54.6k | |
| LinkHub | A simple and effective link management application. | Kotlin |
MIT |
307 | |
| Linkora | Link organizer for Android and desktop with self-hosted sync. | Kotalin |
MIT license |
722 |  |
| Loop Habit Tracker | An app to help you create and maintain good habits over time. | Kotlin |
GPL-3.0 |
9.9k | |
| MarkNote | A Material Design Markdown note-taking application for Android. | Java |
AGPL-3.0 |
913 |  |
| Memento | A simple and elegant note-taking app. (Archived) | Java |
Not specified | 258 | — |
| Minimal-Todo | A fully Material Design To-Do app with just enough features to be useful. | Java |
MIT |
2.2k | — |
| Minitask | A simple and lightweight to-do list and task management app. (Archived) | Java |
Apache-2.0 |
28 | — |
| My Brain | An all-in-one app for managing tasks, notes, events, and more. | Kotlin |
GPL-3.0 |
2.0k | |
| neutriNote | An ultra-compact, extensible rich markdown note app with math formula support. | Java |
GPL-3.0 |
454 | — |
| Noice | Helps you relax and boost productivity with minimal background noises. | Kotlin |
GPL-3.0 |
1.0k | |
| Notes | A simple note-taking app with a Material Design interface. | Java |
Apache-2.0 |
1.4k | |
| Omni Notes | A feature-rich, open-source note-taking application for Android. | Java |
GPL-3.0 |
2.8k | |
| OpenNoteScanner | An application for scanning and manipulating handwritten notes. | Kotlin |
Apache-2.0 |
1.5k | |
| Outlay | A simple application to help you track your expenses. (Archived) | Java |
Apache-2.0 |
47 | — |
| ownCloud | The official Android client for the self-hosted ownCloud file sync platform. | Kotlin |
GPL-2.0 |
4.1k | |
| PocketPal AI | An on-device AI assistant powered by small language models (SLMs). | TypeScript |
MIT |
6.8k | |
| Quill | A beautiful Android app for managing your Ghost blog. | Java |
MIT |
547 | — |
| Remindly | A simple and user-friendly application for creating reminders. | Java |
Apache-2.0 |
576 | — |
| ShutUp! | An app to automatically silence your phone based on your calendar events. | Java |
GPL-3.0 |
20 | — |
| Skiff | A suite of end-to-end encrypted, private email, calendar, and docs apps. | TypeScript |
GPL-3.0 |
962 | — |
| Super Productivity | An open-source to-do list and time tracker with timeboxing, Jira/GitHub/GitLab integration. | TypeScript |
MIT |
19.0k | |
| Swiftnotes | A simple and elegant note-taking application, simplified for quick use. | Java |
Apache-2.0 |
134 | — |
| Tasks | A CalDAV-based task management app for Android. | Kotlin |
GPL-3.0 |
5.2k | — |
| Text Fairy | An OCR app that converts images to text, which can then be edited or shared. | C |
Apache-2.0 |
821 | |
| Thunderbird for Android | The official mobile version of the Thunderbird email client (formerly K-9 Mail). | Kotlin |
Apache-2.0 |
13.4k | |
| todo.txt | The official Android app for managing your todo.txt file via Dropbox. |
Java |
GPL-3.0 |
1.2k | — |
| ToGoZip | Adds an "Add to Zip" option to Android's share menu. | Java |
GPL-3.0 |
64 | |
| tudounotepad | A simple Notepad application developed using Kotlin. | Kotlin |
Apache-2.0 |
110 | — |
| Turbo Editor | A simple, powerful, and open-source text editor for Android. | Java |
GPL-3.0 |
1.4k | — |
| VertiKin | A platform to automatically detect what a user might be interested in buying. | Python |
MIT |
80 | — |
Found an awesome open-source app that's missing? Feel free to open an issue or submit a pull request to add it!