Open SaaS
Open SourceCompletely free, open-source SaaS starter built on the Wasp full-stack framework — React + Node.js with auth, Stripe and Lemon Squeezy payments, an admin dashboard, AI demo app, email sending, and end-to-end type safety.
Why we recommend Open SaaS
Open SaaS is the strongest 'the paid kits are charging for what should be free' argument in the market: a genuinely complete SaaS template — auth with social login, Stripe AND Lemon Squeezy subscription flows, an admin dashboard with analytics, transactional email, file uploads, even a working AI-app example — under MIT license with zero upsell. It's built by the Wasp team on their full-stack DSL, which compiles a single declarative config plus ordinary React/Node code into the whole app, giving you end-to-end type safety and eliminating the client/server glue code that fills every hand-rolled stack. The template doubles as Wasp's flagship demo, so it's maintained with startup-level urgency.
Best use cases
Best for: budget-zero founders who still want payments + auth + admin done, developers curious whether a full-stack DSL beats gluing Next.js libraries together, hackathon teams, and anyone building an AI-flavored SaaS who wants the OpenAI plumbing pre-wired.
Honest limitations
Not for: teams unwilling to bet on Wasp — the framework is the trade-off, with a smaller ecosystem and hiring pool than Next.js, and ejecting means a rewrite. Deployment targets that assume plain Node/Next need adapter work. The included UI is functional, not distinctive.
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