head to head · open source
oauth2-proxy vs openvpn-auth-oauth2
oauth2-proxy has 15,136 GitHub stars, 2,219 forks, 285 open issues and last shipped yesterday. openvpn-auth-oauth2 has 516 stars, 64 forks, 1 open issues and last shipped 2 days ago. oauth2-proxy leads on adoption by 2,833% (15,136 vs 516 stars). oauth2-proxy is written in Go under MIT; openvpn-auth-oauth2 is written in Go under MIT. oauth2-proxy has attracted 15% as many forks as stars, openvpn-auth-oauth2 12%. oauth2-proxy was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (oauth2, 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 | openvpn-auth-oauth2 | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 516 |
| License | MIT | MIT |
| Written in | Go | Go |
| Last push | 2026-10-10 | 2026-10-09 |
| Forks | ⑂ 2.2K | ⑂ 64 |
| 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 openvpn-auth-oauth2 if
- You want the openvpn-auth-oauth2 feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and openvpn-auth-oauth2 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 openvpn-auth-oauth2
openvpn auth oauth2 is an OpenVPN management client and plugin that lets VPN users sign in through any OIDC compatible identity provider, aimed at administrators who want single sign on for their OpenVPN server.
read the full openvpn-auth-oauth2 overview →
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Frequently asked questions
Is oauth2-proxy or openvpn-auth-oauth2 more popular?
oauth2-proxy has 15,136 GitHub stars and openvpn-auth-oauth2 has 516. oauth2-proxy has the larger community by that measure.
Are oauth2-proxy and openvpn-auth-oauth2 free?
Both are open source. oauth2-proxy is licensed under MIT and openvpn-auth-oauth2 under MIT. Neither carries a licence fee.
What is the difference between oauth2-proxy and openvpn-auth-oauth2?
oauth2-proxy is written in Go and openvpn-auth-oauth2 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-proxy or openvpn-auth-oauth2?
Choose oauth2-proxy if you want the larger community (15,136 stars) or its MIT licence terms. Choose openvpn-auth-oauth2 if its feature set, stack or MIT licence fits better. Both are self-hostable.