Assembly Line

Hanko

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.

Hanko is an open-source authentication library project on GitHub under the AGPL-3.0 license (network copyleft), with 9.1k stars. It is built with Go and TypeScript. Its last push was today.

Stars
9.1k
License
AGPL-3.0
Activity
Active
Latest release
backend/v3.1.0

Code on GitHub Website

Judgement

What it is
Complete system
What it does
An authentication server and web components for passkeys, passwords, OAuth, SAML SSO and MFA, as an open alternative to Auth0 or Clerk.
Adopt it when
You want passkey-first login with drop-in UI components and the option to self-host.
Watch out
AGPL license on the backend, and some enterprise features are reserved for Hanko Cloud.
Ready for
Usable
Runs as
Self-hosted server and cloud service
Built with
Go and TypeScript
How established
Established: started 4 years ago, latest release backend/v3.1.0.
What the license allows
Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Hanko → Go → runs on a microchip

How compilers were built, back to punched paper tape

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Stars, license and activity come from GitHub and refresh on a rolling hourly schedule. The project's own description is quoted as written.