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Open Source Authorization & Permissions Tools using Postgres

A curated collection of the best open source systems for defining and enforcing access control policies. using Postgres.

Secure, customizable identity infrastructure for developers
  • Stars


    15,081
  • Last commit


    7 hours ago
  • License


    AGPL-3.0
ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options.

Open Source Alternative to:

Modular auth, payments, emails, and analytics for your product
  • Stars


    6,862
  • Last commit


    4 hours ago
  • License


    Unknown
Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.

Open Source Alternative to:

Build scalable authorization in minutes, not months
  • Stars


    5,956
  • Last commit


    18 hours ago
  • License


    AGPL-3.0
Open-source authorization service for implementing fine-grained access controls. Centralized, scalable solution supporting RBAC, ABAC and ReBAC with Google Zanzibar-inspired architecture.

Open Source Alternative to:

Secure, policy-based access control for modern applications
  • Stars


    4,592
  • Last commit


    12 hours ago
  • License


    Apache-2.0
A scalable authorization layer that provides fine-grained access control through externalized policies, enabling secure and flexible permissions management.

Open Source Alternative to:

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