Open-source SaaS starter
One pick per layer for a product you intend to run yourself, chosen so the whole set can sit on a single server if it has to.
- 01Backend and databasesupabase/supabaseSaaS Development
Postgres with auth, storage, and generated APIs on top, so the first version does not need a bespoke backend.
The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
- Stars
- 114.6k
- Forks
- 15.8k
- Language
- TypeScript
- License
- Apache-2.0
- Last commit
- updated Nov 2026
- 02Authnextauthjs/next-authAuthentication & Security
Worth taking even alongside a backend that offers auth, if the app is already a Next.js app and you want sessions handled in it.
Authentication for the Web.
- Stars
- 28.4k
- Forks
- 4k
- Language
- TypeScript
- License
- ISC
- Last commit
- updated Jul 2026
- 03Frontend componentsshadcn-ui/uiDesign & UI Components
Copied into the repo rather than installed, so the component code stays yours to change.
Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.
- Stars
- 127.5k
- Forks
- 12k
- Language
- TypeScript
- License
- MIT
- Last commit
- updated Nov 2026
- 04Analytics
Cookie-free, which keeps the consent-banner work off the backlog.
Open source, privacy-first web analytics. Lightweight, cookie-free Google Analytics alternative. Self-hosted or cloud.
- Stars
- 29.8k
- Forks
- 1.9k
- Language
- Elixir
- License
- AGPL-3.0
- Last commit
- updated Nov 2026
- 05Deploymentcoollabsio/coolifyInfrastructure & DevOps
Gives you a Heroku-shaped workflow on a server you rent, which is the usual reason this list exists.
An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 360+ one-click services on your own servers.
- Stars
- 65.7k
- Forks
- 5.9k
- Language
- PHP
- License
- Apache-2.0
- Last commit
- updated Nov 2026
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