Second Brain is a free, open-source, and highly customizable personal knowledge management (PKM) system for Android. It empowers users to capture, connect, and retrieve information with full control over their AI tools and data storage.
- Core Note Taking: Create, edit, view, and delete notes in Markdown format.
- Content Capturing: Import content via Android Share Sheet (URLs, text), direct text input, and file import.
- AI Summarization: Integration with various AI providers (using your own API keys).
- Linked Thinking: Bi-directional linking between notes with
[[Note Title]]syntax. - Flexible Storage: Local storage, Google Drive, and OneDrive integration.
- Storage Management: Options to manage storage and delete original source files.
- Basic Search: Keyword search across note titles and content.
- Android Studio Arctic Fox (2021.3.1) or newer
- Android SDK 26 or higher
- Kotlin 1.9.0 or higher
- Clone the repository
- Open the project in Android Studio
- Build and run the project on your device or emulator
This project is licensed under the MIT License - see the LICENSE file for details.
- Inspired by various PKM tools like Obsidian, Roam Research, and Logseq.
- Built with Jetpack Compose, Room, and other modern Android libraries.