head to head · open source
oauth2-proxy vs mod_auth_openidc
oauth2-proxy has 15,038 GitHub stars, 2,204 forks, 285 open issues and last shipped 2 days ago. mod_auth_openidc has 1,096 stars, 332 forks, 0 open issues and last shipped 2 days ago. oauth2-proxy leads on adoption by 1,272% (15,038 vs 1,096 stars). oauth2-proxy is written in Go under MIT; mod_auth_openidc is written in C under Apache-2.0. oauth2-proxy has attracted 15% as many forks as stars, mod_auth_openidc 30%. oauth2-proxy was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (oidc, sso), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| oauth2-proxy | mod_auth_openidc | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 1.1K |
| License | MIT | Apache-2.0 |
| Written in | Go | C |
| Last push | 2026-10-01 | 2026-10-01 |
| Forks | ⑂ 2.2K | ⑂ 332 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick oauth2-proxy if
- You weight community size — 15K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick mod_auth_openidc if
- You want the mod_auth_openidc feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C
- You evaluated both and mod_auth_openidc fits your workflow better
About oauth2-proxy
OAuth2 Proxy is an open source, MIT licensed reverse proxy and middleware written in Go that puts OAuth2 and OpenID Connect authentication in front of web applications, aimed at operators and platform teams who need single sign on without adding auth code to every app.
read the full oauth2-proxy overview →
About mod_auth_openidc
mod auth openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server, aimed at administrators and developers who want to protect web applications with OpenID Connect and FAPI 2 Relying Party support.
read the full mod_auth_openidc overview →
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Frequently asked questions
Is oauth2-proxy or mod_auth_openidc more popular?
oauth2-proxy has 15,038 GitHub stars and mod_auth_openidc has 1,096. oauth2-proxy has the larger community by that measure.
Are oauth2-proxy and mod_auth_openidc free?
Both are open source. oauth2-proxy is licensed under MIT and mod_auth_openidc under Apache-2.0. Neither carries a licence fee.
What is the difference between oauth2-proxy and mod_auth_openidc?
oauth2-proxy is written in Go and mod_auth_openidc in C. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, oauth2-proxy or mod_auth_openidc?
Choose oauth2-proxy if you want the larger community (15,038 stars) or its MIT licence terms. Choose mod_auth_openidc if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.