Lockbook
A privacy-focused note-taking and file storage app that uses end-to-end encryption to keep your data secure across all devices.
About Lockbook
Lockbook is an open-source, privacy-first note-taking application that combines secure file storage with collaborative features. Built with elliptic curve cryptography, it ensures your data remains encrypted and private even from the service providers. The platform supports markdown editing, drawing capabilities, and file sharing while maintaining complete offline functionality. With native clients for each platform and developer-friendly CLI tools, Lockbook offers a transparent alternative to traditional note-taking apps where users are the customers, not the product.
Key Features
- End-to-end encryption using elliptic curve cryptography
- Cross-platform synchronization with native apps (no Electron)
- Offline-first functionality with full local access
- Markdown and SVG editing with drawing support
- Collaborative sharing and team features
- Developer-friendly CLI and API with Rust library
- Transparent pricing model starting free up to 25MB
- File compression to maximize storage efficiency
- PDF and image preview capabilities
- Open source and community-driven development