Freedom251 › Authenticator apps
Zero-TOTP
by Zero-TOTP
What Zero-TOTP is
Zero-TOTP is an open-source platform for keeping TOTP codes used as a second factor when authenticating accounts. You can use the hosted web app or run a self-hosted web instance. The browser performs vault encryption and decryption, so the maker says a server administrator cannot decrypt your vault. Documentation describes client-side AES-256 encryption with strong key derivation. Hosted encrypted vaults are stored on servers the maker says are in Canada, Switzerland, and Germany. You can download an encrypted vault or synchronize it with Google Drive for recovery. Self-hosted installations have Google Drive backups disabled by default and need administrator OAuth configuration to enable them. A failover frontend is described for uploading and decrypting a backup vault. Zero-TOTP is free, has no free trial, and uses the GPL-3.0 license. The hosted app requires JavaScript. The project launched in 2023, remains in beta and development, and the maker describes mobile and Unix CLI clients as coming soon while saying they are not currently in development.
Who it suits
It suits people who want free TOTP storage through a web app or a self-hosted instance. It may also fit users who want encrypted vault backups and browser-based encryption.
What it does well
- Free plan with self-hosting
- Client-side AES-256 encryption
- Hosted or self-hosted deployment
- Encrypted vault download and Google Drive sync
- Open-source GPL-3.0 project
What to know first
- No push approvals
- No team administration
- Hosted app requires JavaScript
- iOS and CLI apps unavailable
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Free to use · self-hostable | Free |
As zero-totp.com lists them, read 9 Oct 2026. The maker's own page has the final word.
Verdict
Zero-TOTP combines free TOTP storage with hosted or self-hosted web deployment. Its browser-side encryption and recovery options are useful, but mobile and CLI clients are not currently available and the project is still in beta.
Facts from Zero-TOTP's own pages
- Backups
- Users can download an encrypted vault or synchronize it with Google Drive for recovery. · zero-totp.com, 9 Oct 2026
- Browser requirement
- The hosted app requires JavaScript to be enabled in the browser. · zero-totp.com, 9 Oct 2026
- Client-side encryption
- The maker says vault encryption and decryption happen in the user's browser, so the server administrator cannot decrypt the vault. · zero-totp.com, 9 Oct 2026
- Code type
- totp · github.com, 23 Sept 2026
- Encrypted backup
- Yes · github.com, 23 Sept 2026
- Encryption
- The documentation says Zero-TOTP uses client-side AES-256 encryption and strong key derivation. · docs.zero-totp.com, 9 Oct 2026
- Founded
- 2023 · zero-totp.com, 19 Oct 2026
- Free plan
- Yes · github.com, 23 Sept 2026
- Google Drive setup
- For self-hosted instances, Google Drive backups are disabled by default and require OAuth configuration by the instance administrator. · docs.zero-totp.com, 9 Oct 2026
- Hosted storage
- The hosted service stores encrypted vaults on its servers, which the maker says are hosted in Canada, Switzerland, and Germany. · zero-totp.com, 9 Oct 2026
- Mobile and CLI availability
- The maker's page describes a mobile app and Unix CLI client as coming soon. · zero-totp.com, 9 Oct 2026
- Open source
- The maker says Zero-TOTP is open source and identifies the project license as GPL-3.0. · zero-totp.com, 9 Oct 2026
- Project status and maker
- The maker says Nathan Stchepinsky first launched the project in 2023 and that it is in beta and still in development. · zero-totp.com, 9 Oct 2026
- Purpose
- Zero-TOTP is an open-source platform for storing TOTP codes used as a second factor for account authentication. · zero-totp.com, 9 Oct 2026
- Push approvals
- No · github.com, 23 Sept 2026
- Rescue access
- The maker describes rescue.zero-totp.com as a failover frontend where users can upload a backup vault and decrypt it. · zero-totp.com, 9 Oct 2026
- Self-hosting
- The documentation says users can host their own instance or use the hosted version. · docs.zero-totp.com, 9 Oct 2026
- Supported platforms
- Web app; self-hosted web app; iOS and CLI apps are not currently in development · github.com, 23 Sept 2026
- Team administration
- No · github.com, 23 Sept 2026
Where Zero-TOTP stands on Freedom251
- Authenticator apps#41 of 111