Dev tools · alternatives · 2026

24 alternatives to WorkOS Fine-Grained Authorization

The most flexible and granular authorization system yet

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. WorkOS Fine-Grained Authorization launched in 2024; newer entries below may have overtaken it.

1. 1
   Permit AI Access Control▲314

   Fine-Grained Permissions for AI-Powered Applications

   2025 · permit.io · its alternatives →

2. 2
   OpenFGA▲7

   Relationship-based access control made fast and easy to use.

   2022 · openfga.dev · its alternatives →

3. 3
   Permify 1.0 – Open-source fine-grained authorization service▲154

   Permify was born out of our repeated struggles with authorization. Like any other piece of software, authorization starts small but as things grow scaling it becomes a real pain and begins to hinder product development processes. Ad-hoc authorization systems scattered throughout your app’s codebase are hard to manage, reason about, and iterate on as the company grows. Also you will need to have more specific access controls as things grow. Traditional approaches like RBAC is inefficient for defining granular permissions such as resource-specific, hierarchical, or context-aware permissions.…

   2024 · github.com · its alternatives →

4. 4
   Topaz: open-source authorization combining the best of OPA and Zanzibar▲132

   Cloud-native authorization for modern applications and APIs - aserto-dev/topaz

   2022 · github.com · its alternatives →

5. 5
   Nango Auth▲600

   Free OAuth for 250+ APIs

   2024 · nango.dev · its alternatives →

6. 6
   InsForge▲622

   We built InsForge because we wanted to use pure prompts to build a production-grade app faster. In practice, AI isn’t reliable enough when generating code or configuring backend pieces like schema, RLS, auth, or functions. Postgres MCP and Supabase MCP are a good starting point, but they felt more like API wrappers for agents than something designed to guide AI safely through backend tasks. So we built our own MCP server on top of Postgres and added a set of context-engineering tools to make prompt-driven workflows more predictable. It gradually turned into a Postgres-based BaaS. Key…

   Mar 2026 · insforge.dev · its alternatives →

7. 7
   Permit.io▲677

   The new Permit.io CLI brings developer-first workflows to access control. Define, test, deploy, and enforce fine-grained authorization using AI, CI/CD, GitOps, and OpenAPI — all from your terminal

   2023 · permit.io · its alternatives →

8. 8
   Superblocks▲424

   Save 100s of hours building internal apps, workflows & jobs

   2022 · superblocks.com · its alternatives →

9. 9FE
   Front end-Only-Authorization – A new web standard▲43

   2023 · foaz.io · its alternatives →

10. 10
    Authorizer▲296

    Open source authentication and authorization solution

    2021 · authorizer.dev · its alternatives →

11. 11
    FoAz – Use Frontend User Authentication for Backend API Authorization▲5

    Fine-grained authorization as a service. RBAC, ABAC, and ReBAC for applications, APIs, and AI agents. Policy as code, a no-code editor, and local PDPs.

    2023 · permit.io · its alternatives →

12. 12
    AccessOwl 2.0▲369

    Discover and manage your teams SaaS access

    2023 · accessowl.com · its alternatives →

13. 13
    Kubernetes as a back-end for OpenFaaS▲194

    Serverless Functions For Kubernetes. Contribute to openfaas/faas-netes development by creating an account on GitHub.

    2017 · github.com · its alternatives →

14. 14
    Permify – Open-source authorization service based on Google Zanzibar▲122

    An open-source authorization as a service inspired by Google Zanzibar, designed to build and manage fine-grained and scalable authorization systems for any application. — Permify is now part of FusionAuth 🎉 - Permify/permify

    2022 · github.com · its alternatives →

15. 15
    Satellizer – Authentication for AngularJS▲221

    Token-based AngularJS Authentication. Contribute to sahat/satellizer development by creating an account on GitHub.

    2014 · github.com · its alternatives →

16. 16
    Fedo▲129

    Simple feature documentation tool.

    2018 · its alternatives →

17. 17
    Topaz 0.30 – OSS authz service combining the best of OPA and Zanzibar▲35

    Hey folks! As Topaz turns a year old, we just released a big update, including support for a new authorization schema language, a built-in visual console, REST APIs for the ReBAC directory, a full test harness, and many other improvements. Would love to get your feedback! Check out the blog post [0] for the complete details (including some cool screenshots), or clone / fork the repo here [1]. Many thanks! [0] https://www.aserto.com/blog/announcing-topaz-030 [1] https://github.com/aserto-dev/topaz

    2023 · aserto.com · its alternatives →

18. 18DA
    Developer API for Granular Authorization▲11

    2022 · play.permify.co · its alternatives →

19. 19
    Oso Cloud▲143

    Authorization for the next billion developers

    2023 · osohq.com · its alternatives →

20. 20
    Free SaaS Template (GPT, Stripe, Auth)▲161

    A free React/NodeJS SaaS template for quick idea execution

    2023 · github.com · its alternatives →

21. 21
    Intello▲120

    Unlock visibility into all of your team's SaaS spend & usage

    2018 · intello.io · its alternatives →

22. 22
    Basaas▲72

    A unified platform for all your work apps

    2019 · its alternatives →

23. 23
    App Access Matrix by Stitchflow▲104

    Define, review & share SaaS app access policies for your org

    2025 · stitchflow.com · its alternatives →

24. 24OO
    oso – Open-Source Policy Engine for Authorization▲44

    Oso helps companies run agents in production with confidence using monitoring, access controls, and automated least privilege.

    2020 · osohq.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →