Ledger Offline Signer

Save this page to your local drive

This signer must run from a local file, not a web server.

Press Ctrl+S (Cmd+S on Mac) to save, then open the saved .html file.

For best security, use an airgapped device (Tails OS, dedicated offline machine).

Disconnect from the internet

This signer does not need internet. Browser spellcheckers, translation extensions, and telemetry can leak secrets.

Firefox: Menu > More > Work Offline

Chrome: DevTools (F12) > Network > check Offline

Best: physically unplug and refresh.