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Dev tools · alternatives · 2026

24 alternatives to ZITADEL

Integrate user management and authentication easy as pie

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ZITADEL launched in 2022; newer entries below may have overtaken it.

  1. 1

    Open source authentication and authorization solution

    2021 · authorizer.dev · its alternatives →

  2. 2

    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 →

  3. 3

    Open-source Auth0/Clerk alternative

    2024 · hexclave.com · its alternatives →

  4. 4OS

    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 →

  5. 5

    Discover and manage your teams SaaS access

    2023 · accessowl.com · its alternatives →

  6. 6

    Password manager on Slack, built for teams

    2022 · plusidentity.com · its alternatives →

  7. 7
    Open SaaS▲505

    Open-source & 100% free React & Node.js SaaS starter

    2024 · github.com · its alternatives →

  8. 8

    One identity layer for your customers, APIs, and agents

    Jul 2026 · monocloud.com · its alternatives →

  9. 9

    I launched Open SaaS about a year and a half ago and surprisingly it’s become one of the most popular free SaaS boilerplate starters on github (https://github.com/wasp/open-saas). After 2 years of work total, I’m pleased to launch what I’m calling “Open SaaS v2.0”. Here’s a breakdown of all the features and updates I’ve made to it over time: * New Big, Shiny Things for v2.0 * - Complete redesign with Shadcn UI for a modern and consistent look (themeability coming soon...). - Script that autogenerates an LLM-friendly version of the documentation…

    2025 · opensaas.sh · its alternatives →

  10. 10

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

    2022 · github.com · its alternatives →

  11. 11

    ​​​​Elegant User Management, Tailor-made for B2B SaaS

    2022 · frontegg.com · its alternatives →

  12. 12

    Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.

    2023 · github.com · its alternatives →

  13. 13

    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 · its alternatives →

  14. 14
    Clerk▲238

    More than authentication, complete user management

    2022 · clerk.com · its alternatives →

  15. 15

    Fully flexible, open source auth in 15 minutes

    2022 · supertokens.com · its alternatives →

  16. 16

    Hi HN, we are Deepak and Sama, co-founders of BoxyHQ (https://boxyhq.com/). BoxyHQ provides an open-source platform for developers to quickly integrate enterprise features into their software solutions. These include SAML Single Sign-On (SSO), Audit logs, with more to come :) Every B2B startup faces a common challenge when it comes to selling into the Enterprise; they need to allocate time and resources to support all the requirements to make their offering enterprise-grade. Supporting these requirements is a significant undertaking for the engineering team, especially since…

    2022 · boxyhq.com · its alternatives →

  17. 17

    Discover and enable identity integrations in minutes

    2020 · marketplace.auth0.com · its alternatives →

  18. 18

    Hey HN, I am proud to show you guys that I have built an open source alternative to Azure OpenAI services. Azure OpenAI services was born out of companies needing enhanced security and access control for using different GPT models. I want to build an OSS version of Azure OpenAI services that people could self host in their own infrastructure. "How can I track LLM spend per API key?" "Can I create a development OpenAI API key with limited access for Bob?" "Can I see my LLM spend breakdown by models and endpoints?" "Can I create 100 OpenAI API keys that my students could use in a classroom…

    2023 · github.com · its alternatives →

  19. 19

    Open source email & password auth for developers

    2020 · supertokens.com · its alternatives →

  20. 20

    The easiest 3rd-party sign-in for your apps and APIs

    2020 · its alternatives →

  21. 21

    Logto adds multi-tenancy, enterprise SSO, and RBAC to your SaaS or AI apps. All with OIDC and OAuth 2.1 made simple, fast, and developer-friendly.

    2022 · logto.io · its alternatives →

  22. 22
    SSOReady▲144

    Open source developer tools for enterprise single sign-on

    2024 · github.com · its alternatives →

  23. 23

    A microservice that makes adding authentication with Google and Github to your application easy. - hypebeast/micro-auth

    2017 · github.com · its alternatives →

  24. 24

    Comprehensive alternative to Auth0

    2023 · logto.io · its alternatives →

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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 →