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OpenSaaS

opensaas.sh

An open-source SaaS starter kit that helps you build, launch, and monetize full-stack apps fast.

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BoilerplateAuthPayment

Overview

Open SaaS gives you a complete, production-ready SaaS foundation , including auth, payments, admin dashboard, AI integration, and deployment , so you can focus on building your product instead of boilerplate.

Key features

  • Pre-configured authentication
  • Stripe/Polar.sh/Lemon Squeezy payment integration
  • Admin dashboard with analytics
  • Full-stack TypeScript support
  • Email sending and cron jobs
  • AWS S3 file uploads
  • Built-in Astro blog
  • E2E testing with Playwright
  • One-command deployment
  • 100% open-source
Pros
  • Completely free and open-source
  • Saves weeks of development time
  • Full-stack type safety out of the box
  • Multiple payment provider options
  • No vendor lock-in—you own all code
  • Active community and responsive team
  • Comprehensive documentation
  • AI-ready architecture
Cons
  • Requires familiarity with React and Node.js
  • Dependency on Wasp framework ecosystem
  • May need customization for unique business logic
  • Learning curve for developers new to full-stack development
Use this if
You want to launch a SaaS product quickly without building infrastructure from scratch, need full-stack type safety, or are building AI-powered applications.
Skip this if
You prefer a different tech stack (e.g., Python, Go), need a no-code solution, or require a managed SaaS platform rather than a self-hosted boilerplate.

Best for

Launching SaaS products quicklyFull-stack JavaScript developersAI-powered application ideasTeams wanting type-safe codeStartups with limited budgets

Alternatives

SupabaseFirebaseClerk + Next.js templateRefineBlitz.js

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