Open source Auth0/Clerk/Firebase alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps
-
Updated
Feb 4, 2026 - Go
Open source Auth0/Clerk/Firebase alternative. Passkeys, SSO, MFA, passwordless, biometric login. Self-hosted or cloud. Enterprise-ready for SaaS & mobile apps
🚀 A future-proof enterprise web CMS supporting both headless and decoupled approaches. Build any type of app with customizable APIs on ASP.NET Core/.NET Core. Completely open-source and designed for flexibility.
DynamicLink is a lightweight, Firebase-free alternative for handling dynamic links and deep links in web and mobile hybrid environments
Clorabase is a free & open source backend (BaaS) alternative for android & java apps. Turn your github repo into a NoSQL database and cloud storage for your app
The ultimate list of open-source alternatives to paid SaaS. Replace Notion, Slack, Jira, and Vercel with free, self-hosted tools. Save money and regain data privacy. 💸 🚀
Self-hosted backend for side projects. Key/value store + Event API + Admin dashboard. One PHP file, no Composer, no containers.
Globio - All In One Backend As A Service.
Postgres-powered key-value database backend server, rewritten in Rust. Just the thing for simple applications needing basic cloud storage.
Instant is a modern Firebase. We make you productive by giving your frontend a real-time database.
Add a description, image, and links to the firebase-alternative topic page so that developers can more easily learn about it.
To associate your repository with the firebase-alternative topic, visit your repo's landing page and select "manage topics."