Open SaaS

A free, open-source SaaS starter with auth, payments, and an admin dashboard built-in

Best for: Developers who want a fully open-source, no-vendor-lock-in SaaS starter with payments and an admin dashboard already wired up.
Skip if: You don't want to learn the Wasp framework layer underneath React/Node - it's not a plain React/Next.js codebase.

Open SaaS is a full-stack, open-source SaaS template maintained by the Wasp team, built on React and Node.js with Prisma and the Wasp framework underneath. It bundles authentication, Stripe/Lemon Squeezy/Polar payments with webhooks, an admin dashboard with analytics, S3 file uploads, cron-driven emails, and an Astro-powered blog, all in TypeScript end-to-end.

Pros

100% open-source and free, no paid tier required
Multiple payment processor options (Stripe, Polar, Lemon Squeezy)
Admin dashboard with analytics and built-in blog
E2E tests with Playwright and full TypeScript coverage

Cons

Built on the Wasp framework, an extra abstraction layer to learn beyond React/Node
Could not verify current GitHub star count or last commit date
Deployment flexibility comes with more setup work than single-platform starters