Open source oidc projects

Every project in the registry tagged oidc, ranked by real GitHub adoption.

projects 6 combined stars ★ 133K refresh nightly
01 Keycloak ★ 37K

Secure authentication and access control made simple

last push7 hours ago languageJava licenseApache-2.0
02 Better Auth ★ 30K

Framework-agnostic authentication for TypeScript applications

last push8 hours ago languageTypeScript licenseMIT
03 Authentik ★ 26K

Take control of your identity with a secure, flexible solution

last push4 hours ago languagePython license
04 Pangolin ★ 23K

Zero trust network access that's better than VPN

last push3 hours ago languageTypeScript license
05 Zitadel ★ 15K

Secure, customizable identity infrastructure for developers

last push5 hours ago languageGo licenseAGPL-3.0
06 Defguard ★ 2.8K

Zero-Trust VPN with built-in 2FA/MFA and SSO capabilities

last push9 hours ago languageRust license

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Frequently asked questions

How many open source oidc projects are there?

This registry tracks 6 projects tagged oidc, with 133,094 GitHub stars between them. The most-adopted is Keycloak at 36,832 stars.

Are these oidc projects free to use?

Yes — 3 of the 6 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which oidc project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these oidc projects still maintained?

6 of the 6 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.