Dev tools · alternatives · 2026

24 alternatives to AuthX

A FastAPI package for Auth made by a human not an AI

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. AuthX launched in 2021; newer entries below may have overtaken it.

1. 1
   AuthKit by WorkOS▲688

   The world's best login box, powered by WorkOS + Radix.

   2023 · authkit.com · its alternatives →

2. 2
   Pre-built Auth UI for React▲353

   Install Auth UI and start authenticating users with Supabase

   2022 · its alternatives →

3. 3
   UI Components▲326

   Reusable React components to build apps with Auth0

   2024 · auth0.com · its alternatives →

4. 4
   Stack Auth (YC S24)▲424

   Open-source Auth0/Clerk alternative

   2024 · hexclave.com · its alternatives →

5. 5SA
   Stack, an open-source Clerk/Firebase Auth alternative▲144

   Hey 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!

   2024 · stack-auth.com · its alternatives →

6. 6
   QuickX-Auth▲3

   Make what makes Your App unique. Don't reinvent its auth.

   2018 · its alternatives →

7. 7
   AgentAuth▲465

   Connect your AI Agents with your Accounts

   2024 · its alternatives →

8. 8
   Auth0 Marketplace▲107

   Discover and enable identity integrations in minutes

   2020 · its alternatives →

9. 9
   AuthN▲102

   Secure, fast, or easy? Pick 3

   2023 · its alternatives →

10. 10FA
    FastOpenAPI – automated docs for many Python frameworks▲153

    2025 · github.com · its alternatives →

11. 11
    AuthKit▲90

    Add passcode, Touch ID, or Face ID auth into Siri Shortcuts!

    2020 · its alternatives →

12. 12
    Authpush▲186

    Easy push notifications for everyone

    2018 · its alternatives →

13. 13
    Autho▲152

    cross-platform login box for web and native apps.

    2014 · its alternatives →

14. 14
    AuthLX▲2

    Premium authentication and licensing built for developers

    Jul 2026 · authlx.com · its alternatives →

15. 15
    Authorizer▲296

    Open source authentication and authorization solution

    2021 · its alternatives →

16. 16
    FusionAuth▲120

    Auth for any app. Get every feature. Deploy everywhere.

    2018 · its alternatives →

17. 17
    Authentiq▲157

    Strong authentication, without the passwords

    2017 · its alternatives →

18. 18
    Authify▲94

    Quick authentication setup for devs

    2024 · its alternatives →

19. 19
    Authsignal▲125

    Passwordless auth, fraud analytics and step-up rules in mins

    2022 · its alternatives →

20. 20OS
    Open-source Auth0 alternative Ory Kratos v0.13 released – nearing v1.0▲88

    2023 · github.com · its alternatives →

21. 21
    AuthX▲6

    Secure Authentication and Access Solutions

    2023 · its alternatives →

22. 22
    DashboardAuth▲85

    User management for Retool, Streamlit & more

    2022 · its alternatives →

23. 23
    Easyoauth▲73

    Securely connect your front-end web app to APIs, in minutes

    2021 · its alternatives →

24. 24OS
    Open Source Auth0 alternative Ory Identifier First Auth and OTP MFA▲11

    2024 · github.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 →