OpenSaaS
Wasp
typescript
Open source
Free
OpenSaaS is a 100% free and open-source SaaS starter kit built on the Wasp full-stack framework using React, Node.js, and Prisma. With over 10,000 GitHub stars, it provides full-stack authentication, end-to-end type safety, background jobs, and one-command deployment to Railway or Fly.io. The kit includes Stripe or Lemon Squeezy for payments, OpenAI integration examples, AWS S3 file storage, and Playwright end-to-end tests—all without relying on expensive third-party services.
Key Features
- Built on Wasp full-stack framework
- Stripe and Lemon Squeezy payment integrations
- Auth, admin dashboard, and email built-in
- AI-ready with OpenAI integration examples
Best For
- •developers wanting free full-stack starter
- •AI SaaS apps
- •rapid prototyping
Considerations
- •Wasp framework learning curve
- •smaller community than Next.js alone
- •less flexibility than custom setup
Quick Info
- Stack
- Wasp
- Language
- typescript
- Pricing
- Open source
- Price
- Free
- Last Verified
- Feb 4, 2026
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