stack-auth

The premium Open Source alternative to Auth0

🎯 Best for:Developers wanting full control over user data.
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What is stack-auth?

A self-hosted identity and user management solution designed to replace Auth0 and Clerk. It provides a managed authentication UI, session management, and magic links without vendor lock-in.

Tech Stack
TypeScriptBackend & Auth

Why stack-auth?

  • • No monthly active user limits
  • • Full database ownership
  • • Customizable UI components

Limitations

  • • Self-hosting maintenance required
  • • Smaller community than Keycloak
  • • Fewer enterprise integrations
5/31/2026
Last Update
515
Forks
28
Issues
Other
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to stack-auth instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Auth0)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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