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2FAuth vs Zero-TOTP: catalog facts
2FAuth	Zero-TOTP
Free Free and open source under the AGPL-3.0 licence.	Free Free and open source under the GPL-3.0.
Web, Self-hosted	Web, Self-hosted
Codes available from any device with a browser Easy backup and restore of a standalone database	Zero-knowledge encryption of stored TOTP secrets Use the hosted service or self-host it
Requires running your own server Fully localised only in English and French	iOS app still in development and CLI only planned Small project with a limited contributor base
Self-hosted	Web application, Self-hosted
Open source	Open source
License: AGPL-3.0	License: GPL-3.0
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.