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Alternatives

Products that do what Authula does

An open-source authentication solution that scales with you.

  1. 1

    Open-source Auth0/Clerk alternative

    2024

  2. 2

    Open source authentication and authorization solution

    2021

  3. 3

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

    2023 · authkit.com

  4. 4

    Free OAuth for 250+ APIs

    2024

  5. 5
    GPT Auth402

    Authentication for GPTs on GPT store

    2024

  6. 6OS

    I’m Rishabh and the co-founder and CTO at https://supertokens.com (YC S20). We offer open-source user authentication and we just released our user roles product for companies implementing authorization. Our users are web developers, and a prominent and adjacent pain point for our users is authorization. Developers typically implement two independent solutions for authentication and authorization. Offering AuthN and AuthZ in a single solution is something we’ve been thinking about for the last few years. Quick primer, authentication is knowing who the user is, and authorization is…

    2022

  7. 7

    Comprehensive alternative to Auth0

    2023

  8. 8TO

    Hi folks! I'm Ulysse, and Tesseral (https://github.com/tesseral-labs/tesseral) is open-source auth for B2B SaaS. Early in my career, I worked on enterprise auth and security features at Segment. I've been obsessed with the subtle details of enterprise software ever since. For example, I wrote an implementation of SAML in the early days of the COVID pandemic because I thought it was fun. Over the years, I've felt frustrated that too few people have seemed interested in making auth obvious for developers of business software. Auth really doesn't need to be so confusing. We…

    2025 · github.com

  9. 9
    Authentiq157

    Strong authentication, without the passwords

    2017

  10. 10

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

    2022

  11. 11

    Open-source auth for enterprise applications, and AI agents

    4d ago · authorizer.dev

  12. 12

    Free OSS auth without 3rd party services, deploy anywhere

    2023

  13. 13OK
  14. 14SA

    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

  15. 15OS
  16. 16
    Tesseral141

    Open source authentication infrastructure for B2B software

    2025

  17. 17
    Autho152

    cross-platform login box for web and native apps.

    2014

  18. 18
    InstantDB329

    Complete backend with auth and storage in one prompt

    Apr 2026 · instantdb.com

  19. 19KA
  20. 20
    Hanko236

    Open source alternative to Auth0 with superpowers

    2022

  21. 21OS
  22. 22

    Enhance existing authentication or setup a new login page

    2023

  23. 23AN

    No gc, No goroutines, Produces small binaries while using the unmodified official go toolchain, and comes with complete Web SDK (generated from w3c/webref). We are building `pcz` to provide a reimagination of Go the language, in an effort to make it suitable for all kinds of programming tasks, and currently you can use it to build efficient web applications in Go using the generated Web SDK (as shown with the live web demo[1]). The journey is just starting, any suggestions? or any critics? [1]: https://primecitizens.github.io/livedemos/10-plat-web/

    2023 · github.com

  24. 24
    MojoAuth263

    Simple & Easy passwordless authentication for website & apps

    2021

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