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SpiceDB

Open-source Zanzibar-inspired permissions database

Identity & SSO ★ 6.9k stars Hard setup Apache-2.0

SpiceDB is an open-source database system for managing security-critical application permissions inspired by Google Zanzibar. It is self-hosted to provide consistent, fine-grained authorization at scale.

Key features

  • Zanzibar-inspired model
  • Consistency guarantees
  • Schema language
  • Horizontal scaling

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Kubernetes-ready with Helm charts available
  • Mature project with 6.9k GitHub stars

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