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Convex

★ 12k

Open-source build of the Convex reactive database/backend with TypeScript server functions and realtime sync

Convex does the job of Firebase and Convex Cloud, self-hosted. It is FSL-1.1-Apache-2.0-licensed, so you can do essentially what you like with it, and setting it up is an afternoon, not a weekend. Firebase bills $25-100+ for it. 12k stars on GitHub.

Open-source replacement for Firebase, Convex Cloud.

Licence
FSL-1.1-Apache-2.0
Self-hosting
Medium
The paid one costs
$25-100+
GitHub stars
12k
view the code →official site →

Is it actually a replacement?

We have written a verdict on what it replaces — what you lose, and why people still pay:

How Convex runs

Where it runs

Convex runs on your server.

What setup takes

not verified by us yet — check the repo README.

Convex questions

Is Convex open source?

Yes — it is released under FSL-1.1-Apache-2.0.

Can Convex replace Firebase?

Our verdict on Firebase Blaze is YES. Supabase (108k stars), PocketBase (59k stars), Appwrite (57k stars) are mature open-source replacements for Firebase Blaze — self-host with real ops work and stop paying.

Can I self-host Convex?

Yes — we rate it medium to self-host, and it runs on your server.

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