head to head · open source
oauth2-client vs vouch-proxy
oauth2-client has 3,819 GitHub stars, 770 forks, 64 open issues and last shipped 7 days ago. vouch-proxy has 3,282 stars, 337 forks, 65 open issues and last shipped 3 months ago. oauth2-client leads on adoption by 16% (3,819 vs 3,282 stars). oauth2-client is written in PHP under MIT; vouch-proxy is written in Go under MIT. oauth2-client has attracted 20% as many forks as stars, vouch-proxy 10%. oauth2-client was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (authentication, oauth2, 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-client | vouch-proxy | |
|---|---|---|
| GitHub stars | ★ 3.8K | ★ 3.3K |
| License | MIT | MIT |
| Written in | PHP | Go |
| Last push | 2026-09-16 | 2026-07-03 |
| Forks | ⑂ 770 | ⑂ 337 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick oauth2-client if
- You weight community size — 3.8K stars and counting
- You want the MIT license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick vouch-proxy if
- You want the vouch-proxy feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and vouch-proxy fits your workflow better
About oauth2-client
league/oauth2 client is an MIT licensed PHP library maintained by The PHP League that provides a reusable base for integrating applications with any OAuth 2.0 service provider, aimed at PHP developers who need to add "Connect with Facebook/Google" style login and token flows without implementing RFC 6749 from scratch.
read the full oauth2-client overview →
About vouch-proxy
Vouch Proxy is a Go based single sign on gateway that protects websites behind Nginx by validating OAuth and OpenID Connect logins through Nginx's auth request module, and it is built for operators who already run Nginx and want one login layer in front of everything they host.
read the full vouch-proxy overview →
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Frequently asked questions
Is oauth2-client or vouch-proxy more popular?
oauth2-client has 3,819 GitHub stars and vouch-proxy has 3,282. oauth2-client has the larger community by that measure.
Are oauth2-client and vouch-proxy free?
Both are open source. oauth2-client is licensed under MIT and vouch-proxy under MIT. Neither carries a licence fee.
What is the difference between oauth2-client and vouch-proxy?
oauth2-client is written in PHP and vouch-proxy in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, oauth2-client or vouch-proxy?
Choose oauth2-client if you want the larger community (3,819 stars) or its MIT licence terms. Choose vouch-proxy if its feature set, stack or MIT licence fits better. Both are self-hostable.