Privacy-First Identity
One Wallet.
Every Site.
Your Privacy.
Sign in with your device. Sync across all your devices. No passwords. No tracking.
Sites on the Lemma network see only a unique pseudonym for you - your activity is unlinkable across sites. You own your identity, not the platforms.
Checking credentials...
How It Works
Your identity lives in your wallet, syncs across devices, and gives each site only what they need to know - nothing more.
Create Once
Set up your wallet with a passkey. No password needed - your device is the key.
Sync Everywhere
Link any device. Your wallet syncs automatically - phone, laptop, tablet.
Sign In Anywhere
One tap on any network site. Each sees a unique pseudonym - unlinkable.
Privacy-Preserving Login
Each site sees a unique identifier for you (PPID). Sites cannot track you across the network or share your data with each other.
Cross-Device Sync
Wallet data encrypted end-to-end and synced across all your devices. Lost your phone? Sign in on any linked device.
Passkey Security
Biometric or device-based authentication. No passwords to remember, phish, or breach. Hardware-backed security.
Network Effect
One wallet works across all sites on the Lemma network. More sites join, more places you can sign in - no new accounts needed.
Permission Control
Grant and revoke access per site. See exactly what each site can access. You're in control, not them.
Instant Verification
Credentials verified locally in your browser using Ed25519 signatures. No server round-trips for authentication.
Join the Beta
Free access to privacy-first authentication. No credit card required.
Passwordless • Privacy-first • Cross-device sync