An open source OAuth/auth system
Can be deployed to Cloudflare or fully selfhosting. A simple demo site available with only Password Sign-in/Sign-up, OTP MFA, Passkey enrollment features enabled, no real email needed: https://auth-demo.valuemelody.com/
An open source OAuth/auth system launched on March 27, 2025 with 9 votes, #3,084 of 7,215 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Melody Auth is a user-friendly, robust solution for implementing and hosting your own OAuth and authentication system. It comes with a complete oauth/auth server, admin panel, S2S API, client SDKs
A turnkey OAuth & authentication system, designed for both Cloudflare Workers and Node.js - ValueMelody/melody-auth
Melody Auth is a user-friendly, robust solution for implementing and hosting your own OAuth and authentication system. Disclaimer All French translations provided in this project have been generated by AI. Please review them carefully for accuracy before use. This project is licensed under the MIT License. See the LICENSE file for details. A turnkey OAuth & authentication system, designed for both Cloudflare Workers andfrom github.com
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Stack, an open-source Clerk/Firebase Auth alternative2024 · stack-auth.com · ▲144Hey HN! Happy to finally launch Stack. We made it because we like to put apps into production quickly, and authentication & user management was taking up way too much time. We have components like and that automatically adapt to whatever theme & design system you're using. Check the blog post to see the example with Radix UI and Joy UI. Also, there's an admin dashboard for monitoring and editing accounts. Stack is 100% AGPL/MIT-licensed, so you can self-host it. Cheers!
- HOHydra – Open-Source OAuth2 Server2019 · gethydra.sh · ▲190
Ory Hydra is the open-source, OpenID Certified® OAuth 2.0 server and OpenID Connect provider. Cloud-native, API-first, and built for scale.
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