Dev tools · alternatives · 2026
24 alternatives to Stack, an open-source Clerk/Firebase Auth alternative
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!
Stack is an open-source authentication and user management platform designed as an alternative to Clerk and Firebase Auth. It provides pre-built components like sign-in and account settings forms that automatically… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Stack, an open-source Clerk/Firebase Auth alternative launched in 2024; newer entries below may have overtaken it.
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The task came with a sense of helplessness. We knew what "great" looked like, but it was impractical to build all of that functionality.
2021 · clerk.dev · its alternatives →
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InstantDB▲320Complete backend with auth and storage in one prompt
Apr 2026 · instantdb.com · its alternatives →
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Announcing Appwrite 0.14 with 11 Cloud Function Runtimes! 🥳
2022 · github.com · its alternatives →
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StackPatch▲116Patch authentication into your Next.js app with one command
Jan 2026 · its alternatives →
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Install Auth UI and start authenticating users with Supabase
2022 · supabase.com · its alternatives →
- 10
Open Source realtime backend in 1 file. Contribute to pocketbase/pocketbase development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 11
Turn your Airtable into an app in minutes
2020 · stacker.ai · its alternatives →
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Open SaaS▲505Open-source & 100% free React & Node.js SaaS starter
2024 · github.com · its alternatives →
- 14
Discover Firebase, Google’s mobile and web app development platform that helps developers build apps and games that users will love.
2012 · firebase.com · its alternatives →
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Clerk▲280Authentication and user management for React and Next.js
2021 · clerk.com · its alternatives →
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A resource to find platform-based work
2020 · sidehustlestack.co · its alternatives →
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UI Components▲325Reusable React components to build apps with Auth0
2024 · auth0.com · its alternatives →
- 18
Userbase is the easiest way to add user accounts and data persistence to your static site. No backend necessary.
2020 · userbase.com · its alternatives →
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Userbase▲465Add user accounts & data persistence to your static site.
2020 · userbase.com · its alternatives →
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Free OSS auth without 3rd party services, deploy anywhere
2023 · wasp.sh · its alternatives →
- 21
Search your browser & social bookmarks
2024 · betterstacks.com · its alternatives →
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Stack 2.0▲313Stack is an internet launchpad for multitaskers
2019 · stackbrowser.com · its alternatives →
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Firebase from AWS, but much better
2020 · docs.amplify.aws · its alternatives →
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Appwrite® - complete cloud infrastructure for your web, mobile and AI apps. Including Auth, Databases, Storage, Functions, Messaging, Hosting, Realtime and more - appwrite/appwrite
2022 · github.com · 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 →