We’re building open, secure, and privacy-respecting tools for self-custody and digital sovereignty.
- 🔑 Status Keycard — A JavaCard applet implementing a BIP-32 HD wallet.
- 🛠️ Keycard Shell — A modular hardware wallet which uses Keycard as a secure element.
Explore all our repositories in the Keycard Tech GitHub repositories.
Keycard is a public good — contributions are highly encouraged!
You can help by contributing code, testing, improving documentation, or suggesting new ideas.
- Check out our documentation site
- Explore the existing ecosystem of projects
- Check good first issues
- Share feedback or ideas!
- 🌐 Website: keycard.tech
- 💬 Community: Keycard discord
- 🐦 Twitter: @keycard_
Built with ❤️ by a community of builders who believe in open security and permissionless technology.