Check out what I found:
Open SaaS by Wasp
It’s a free, open-source SaaS starter built with React, NodeJS, Prisma, and Wasp.
But it’s not just a basic template with a login page and landing page.
It already comes with a lot of the annoying SaaS plumbing wired up:
✅ Auth
✅ Payments
✅ Email
✅ Background jobs
✅ File uploads
✅ Admin/dashboard UI
✅ Analytics
✅ Deployment setup
✅ AI coding tool support for Claude Code, Cursor, Codex, and OpenCode
wasp-lang/open-saas: A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.