Seedkeeper: Hardware Password Manager and Passkey Device
Your Secrets, On a Device You Hold
Seedkeeper is an open-source hardware security device - available as a card or a ring - that stores your passwords, and on PRO models, your passkeys and OTP codes too. Everything happens on-device, inside an EAL6+ certified secure element, with zero cloud dependency and no data collection.
Overview
Seedkeeper turns a small, FIDO2-certified secure element into a self-contained security device:
- Password manager - store logins and secure notes
- Passkey authenticator (PRO only) - passwordless sign-in via FIDO2
- OTP generator (PRO only) - offline two-factor codes
There's no app account, no cloud sync, and no data collection - your secrets stay on the physical device, communicating with the companion apps only over NFC or a contact reader.
Which Seedkeeper Do You Have?
| Seedkeeper Classic | Seedkeeper PRO | |
|---|---|---|
| Password manager | Yes | Yes |
| Passkeys (FIDO2) | - | Yes |
| OTP / TOTP codes | - | Yes |
| Form factors | Card, Ring | Card, Ring |
Not sure which one you have, or want to know what to download? Start with the First Setup Guide.
What's in This Documentation
- Product Documentation - setup, password manager, passkeys, OTP
- Tutorials - service-by-service guides (Google, Microsoft, and more)
- Security Academy - what passkeys, FIDO2, OTP, and seed phrases actually are
- Developers - SDKs and integration
- Business - deploying Seedkeeper across an organization
- Troubleshooting - lost devices, resets, recovery
- Glossary - quick definitions of every technical term used here
FAQ
Do I need an internet connection to use Seedkeeper?
No. Seedkeeper has zero cloud dependency - it works entirely offline, communicating only with the companion app over NFC or a contact reader.
What's the difference between Seedkeeper Classic and PRO?
PRO includes everything Classic does, plus passkeys and OTP/TOTP support. See Which Seedkeeper Do You Have? above.
Where do I start?
The First Setup Guide walks you through downloading the right app and connecting your device.