Dev tools · alternatives · 2026

Owky is an open source two-factor authentication application launched in 2022. It provides developers and security-conscious users with a tool for managing two-factor authentication codes. As an open source project… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Owky – open source two-factor application launched in 2022; newer entries below may have overtaken it.

1. 1
   Owky▲63

   Own your keys

   2022 · owky.xyz · its alternatives →

2. 2
   Stack Auth (YC S24)▲424

   Open-source Auth0/Clerk alternative

   2024 · hexclave.com · its alternatives →

3. 3AO
   Authian – Open Source 2-Factor Authentication Using Instant Messengers▲37

   2017 · authian.org · its alternatives →

4. 4
   Authorizer▲291

   Open source authentication and authorization solution

   2021 · authorizer.dev · its alternatives →

5. 5
   Authenticator by 2Stable▲66

   Secure, encrypted and fast two-factor authentication app

   2021 · authenticator.2stable.com · its alternatives →

6. 6
   Pubky Core▲126

   Open-source protocol for a decentralized, user-owned web

   2024 · pubky.org · its alternatives →

7. 7
   Authenticator°▲85

   Online account protection with multi-factor authentication

   2023 · apps.apple.com · its alternatives →

8. 8
   Ente Auth▲357

   Shared vault for your most important documents

   2024 · ente.com · its alternatives →

9. 9
   TypingDNA Authenticator▲315

   2FA codes in your browser, secured by the way you type

   2018 · typingdna.com · its alternatives →

10. 10
    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 →

11. 11OS
    Open Source Authentication and Authorization▲128

    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 · its alternatives →

12. 12
    Authy▲177

    Dead simple two-factor authentication optimized for devs

    2014 · authy.com · its alternatives →

13. 13
    Vouz▲236

    No login open source file sharing platform

    2025 · its alternatives →

14. 14
    Authmoji▲123

    Two-factor authentication with flair

    2021 · authmoji.com · its alternatives →

15. 15
    Authenticator App by 2Stable▲100

    Secure 2FA app for iPhone, iPad, iPod, Apple Watch & Mac

    2023 · authenticator.2stable.com · its alternatives →

16. 16
    Open-Source Auth for NextJS / React▲107

    Add open source login to any Next.js and React single page app (SPA) using free open source.

    2021 · ory.dev · its alternatives →

17. 17
    Open-source Firebase Alternative? It's here▲153

    Announcing Appwrite 0.14 with 11 Cloud Function Runtimes! 🥳

    2022 · github.com · its alternatives →

18. 18
    Authenticator▲87

    Two-factor authentication in your browser itself

    2021 · authenticator.cc · its alternatives →

19. 19
    auth.▲66

    2FA , MFA, OTP, Secure Code for Apple devices

    2021 · auth.startway.io · its alternatives →

20. 20
    Minimal NIST/OWASP-compliant auth implementation for Cloudflare Workers▲33

    This is an educational reference implementation showing how to build reasonably secure, standards-compliant authentication from first principles on Cloudflare Workers. Stack: Hono, Turso (libSQL), PBKDF2-SHA384 + normalization + common-password checks, JWT access + refresh tokens with revocation support, HTTP-only SameSite cookies, device tracking. It's deliberately minimal — no OAuth, no passkeys, no magic links, no rate limiting — because the goal is clarity and auditability. I wrote it mainly to deeply understand edge-runtime auth constraints and to have a clean Apache-2.0 example that…

    Feb 2026 · github.com · its alternatives →

21. 21AB
    Authenticator by 2Stable▲28

    2021 · authenticator.2stable.com · its alternatives →

22. 22
    NoPass.me▲129

    Open-source identity verification

    2021 · nopass.me · its alternatives →

23. 23
    2FAS▲69

    The fastest-growing, private, and secure 2FA app

    2022 · 2fas.com · its alternatives →

24. 24
    Run your own OAuth2 and OpenID Connect Provider▲88

    Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on Ory Network or self-host. Trusted by OpenAI and many others for scale and security. Written in Go. -

    2016 · 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 →