Top 19 Alternative OpenSource for BACKEND in 2025

Supabase
Supabase is an open source Firebase alternative.

Supabase

Development tools

Supabase is an open source Firebase alternative.

3.9M
visit
stars
node-red
Low-code programming for event-driven applications

node-red

Development & IT

Low-code programming for event-driven applications

529.2K
visit
stars
Appwrite
Your backend, minus the hassle.

Appwrite

Development tools

Your backend, minus the hassle.

415.4K
visit
stars
Coolify
Self-hosting with superpowers. An open-source & self-hostable Heroku / Netlify / Vercel alternative.

Coolify

Build it yourself

Self-hosting with superpowers. An open-source & self-hostable Heroku / Netlify / Vercel alternative.

315.7K
visit
stars
Pocketbase
Open Source backend for your next SaaS and Mobile app in 1 file

Pocketbase

Development tools

Open Source backend for your next SaaS and Mobile app in 1 file

145.9K
visit
stars
convex.dev
Convex | The fullstack TypeScript development platform

convex.dev

Development & IT

Convex | The fullstack TypeScript development platform

144.6K
visit
stars
reflex
πŸ•ΈοΈ Web apps in pure Python 🐍

reflex

Web builders

πŸ•ΈοΈ Web apps in pure Python 🐍

88.6K
visit
stars
wasp
The fastest way to develop full-stack web apps with React & Node.js.

wasp

Development & IT

The fastest way to develop full-stack web apps with React & Node.js.

55.0K
visit
stars
nhost
The Open Source Firebase Alternative with GraphQL.

nhost

Development & IT

The Open Source Firebase Alternative with GraphQL.

24.4K
visit
stars
dokploy
Open Source Alternative to Vercel, Netlify and Heroku.

dokploy

Development & IT

Open Source Alternative to Vercel, Netlify and Heroku.

8.1K
visit
stars
Remotely Remote
A remote control and remote scripting solution, built with .NET 8, Blazor, and SignalR.

Remotely Remote

Development & IT

A remote control and remote scripting solution, built with .NET 8, Blazor, and SignalR.

stars
CapRover
Scalable PaaS (automated Docker+nginx) - aka Heroku on Steroids

CapRover

Cloud services & hosting

Scalable PaaS (automated Docker+nginx) - aka Heroku on Steroids

stars
openpilot
openpilot is an operating system for robotics. Currently, it upgrades the driver assistance system in 275+ supported cars.

openpilot

Development & IT

openpilot is an operating system for robotics. Currently, it upgrades the driver assistance system in 275+ supported cars.

stars
encore
Encore is the Backend Development Platform for building distributed systems and event-driven applications.

encore

Development & IT

Encore is the Backend Development Platform for building distributed systems and event-driven applications.

stars
v1
An open-source starter kit based on Midday.

v1

Development & IT

An open-source starter kit based on Midday.

stars
labrinth
Our Rust-based backend utilizing the actix-web framework to serve Modrinth's API.

labrinth

Development & IT

Our Rust-based backend utilizing the actix-web framework to serve Modrinth's API.

stars
swift
OpenStack Storage (Swift). Mirror of code maintained at opendev.org.

swift

Cloud services & hosting

OpenStack Storage (Swift). Mirror of code maintained at opendev.org.

stars
solvespace
Parametric 2d/3d CAD

solvespace

Development & IT

Parametric 2d/3d CAD

stars
sonic
πŸ¦” Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

sonic

Development & IT

πŸ¦” Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

stars