Alternatives

Products that do what Hydra – Open-Source OAuth2 Server does

1. 1GT
   Graceful token refresh for open source OAuth2 Server Ory Hydra▲7

   2025 · github.com

2. 2FO
   Fosite – OAuth2 framework for Go▲38

   2016 · github.com

3. 3IM
   I made an open-source marketplace to fasten OAuth API integrations▲20

   2020 · github.com

4. 4OI
   OAuth.io released with 70+ providers▲66

   2013 · oauth.io

5. 5RY
   Run your own OAuth2/OpenID Connect provider▲161

   2016 · github.com

6. 6TC
   Tyk Cloud – Open Source API Management in The Cloud▲36

   2015 · cloud.tyk.io

7. 7OO
   oso – Open-Source Policy Engine for Authorization▲44

   2020 · osohq.com

8. 8EI
   Emauth.io – Free service for Slack-style passwordless login links▲36

   2020 · emauth.io

9. 9TA
   Tankman – An Open Source User Management and Authorization MicroService▲7

   2023 · github.com

10. 10KA
    Kubernetes: A single OAuth2 proxy for multiple ingresses▲5

    2020 · callumpember.com

11. 11OD
    Opensource Desktop Implementation of the Threema Crypto Messenger▲39

    2016 · github.com

12. 12OF
    OAuth for AI Agents▲8

    2025 · github.com

13. 13BA
    Blueboat – An open-source alternative to Cloudflare Workers▲19

    2021 · github.com

14. 14AO
    AuthPlane – OAuth 2.1 and PKCE authorization server for MCP▲7

    Jun 2026 · github.com

15. 15DI
    Drov.io – plug-and-play user authentication and management platform▲15

    2015 · drov.io

16. 16BA
    Bare Auth – a ready-to-deploy stateless authentication server▲7

    2015 · github.com

17. 17CC
    CertMagic – Caddy's automagic HTTPS features as a Go library▲33

    2018 · github.com

18. 18TA
    Twofu: A Two-Factor Authenticator Command-Line App▲11

    2016 · github.com

19. 19OL
    Ovlt – Lightweight Auth Server That Runs in ~20MB RAM▲5

    May 2026 · ovlt.tech

20. 20PC
    Portal Cloud – VPN Service for Teams▲25

    2018 · portal.cloud

21. 21MO
    Mashape open-sources Guardian to solve your OAuth headaches▲25

    2014 · guardianjs.com

22. 22OR
    Oyabun – resilient C2 infrastructure for pentesters▲15

    2020 · oyabun.io

23. 23KS
    Keyper – SSH Key Based Authentication Manager is now open source▲7

    2020 · keyper.dbsentry.com

24. 24SA
    Sqreen API, a security toolbox for developers▲8

    2017 · sqreen.io

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