The best Open SaaS alternatives
4 tools that do a similar job to Open SaaS, 4 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.
You're replacing
Open SaaSFree, open-source starter kit for building a SaaS web app with React, Node.js and Prisma.
- 1
Wasp
Open source · MIT · ★ 18.8k
A framework that builds React, Node.js and Prisma web apps from a short declarative spec.
Best for: Developers who want to build a full-stack React and Node.js app quickly; Small teams or solo builders who prefer convention over configuration
- 2
AI Website Cloner
Open source · MIT · ★ 38.4k
A template that has an AI coding agent copy a website into a clean Next.js app.
Best for: Developers who want a working Next.js starting point for a site they already own; Teams migrating a site off WordPress, Webflow, or Squarespace
- 3
Cal.diy
Open source · MIT · ★ 49.6k
Open-source, self-hosted scheduling app for booking meetings, a community fork of Cal.com.
Best for: Individuals who want to self-host their own booking page; Developers who want to study or modify a large TypeScript scheduling app
- 4
DocsGPT
Open source · MIT · ★ 18.4k
Self-hosted platform for AI agents that answer from your own documents, with any model.
Best for: Teams that want an internal assistant over their own documents and wikis; Developers who want to embed a documentation chatbot on a product site
How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to Open SaaS. We don't take payment for placement.