head to head · open source
oauth2-client vs openvpn-auth-oauth2
oauth2-client has 3,820 GitHub stars, 768 forks, 64 open issues and last shipped 25 days ago. openvpn-auth-oauth2 has 516 stars, 64 forks, 1 open issues and last shipped 2 days ago. oauth2-client leads on adoption by 640% (3,820 vs 516 stars). oauth2-client is written in PHP under MIT; openvpn-auth-oauth2 is written in Go under MIT. oauth2-client has attracted 20% as many forks as stars, openvpn-auth-oauth2 12%. openvpn-auth-oauth2 was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (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.
← all 20902 open source comparisons
Side by side
| oauth2-client | openvpn-auth-oauth2 | |
|---|---|---|
| GitHub stars | ★ 3.8K | ★ 516 |
| License | MIT | MIT |
| Written in | PHP | Go |
| Last push | 2026-09-16 | 2026-10-09 |
| Forks | ⑂ 768 | ⑂ 64 |
| 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 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-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 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 →
More in Security & Privacy
Related comparisons
More Identity & Access Management (IAM) projects
Compare either of these against the rest of the Identity & Access Management (IAM) field.
Frequently asked questions
Is oauth2-client or openvpn-auth-oauth2 more popular?
oauth2-client has 3,820 GitHub stars and openvpn-auth-oauth2 has 516. oauth2-client has the larger community by that measure.
Are oauth2-client and openvpn-auth-oauth2 free?
Both are open source. oauth2-client is licensed under MIT and openvpn-auth-oauth2 under MIT. Neither carries a licence fee.
What is the difference between oauth2-client and openvpn-auth-oauth2?
oauth2-client is written in PHP 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-client or openvpn-auth-oauth2?
Choose oauth2-client if you want the larger community (3,820 stars) or its MIT licence terms. Choose openvpn-auth-oauth2 if its feature set, stack or MIT licence fits better. Both are self-hostable.