can i fork it?
open sourceOpen SourceSelf-host★ 3kactive nov 2026

undb

Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly

Technical Profile & Specs

verified 2026-11-07

Cost
$0 / forever (Open Source)
License
Open Source
Hosting Model
Self-host (your server)
Platforms
webself-hosteddocker to self-host
Installation
Clone https://github.com/undb-io/undb or deploy with Docker Compose
Operational Setup
Deploy via Docker or binary release from GitHub and configure environment variables.
Where Your Data Lives
All application data and configuration live on your own server or local database.
The Catch / Trade-off
Requires self-hosting setup, updates, and server maintenance compared to managed Firebase.

Replaces 3 paid apps

up to $65/mo ($780/yr) in subscriptions

undb FAQ

Common questions

Is undb free and open source?+

undb is an open-source tool licensed under Open Source that runs on self-host. Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly

What paid software does undb replace?+

undb serves as a free replacement for 3 paid SaaS applications: Firebase, Stackby, Supabase, saving up to $65/month ($780/year) in subscription bills.

How do you install and set up undb?+

Installation: Clone https://github.com/undb-io/undb or deploy with Docker Compose. Setup notes: Deploy via Docker or binary release from GitHub and configure environment variables.

What is the catch or trade-off with undb?+

Requires self-hosting setup, updates, and server maintenance compared to managed Firebase.