Start a web app with account sign-in, payment integration code and a database setup.
MIT source code · No template licence fee · Hosting and service costs extra

Developer tools
Start a Next.js SaaS app with authentication, payment and email integration code.
Start a Next.js SaaS app with authentication, payment and email integration code.
Use open-source Next.js SaaS starter integration code instead of buying a starter-code licence. Auth, payments and email still require setup and separately supplied services; this does not make operating the finished SaaS free.
Starter code, not a hosted no-code app. Requires developer setup and credentials. Third-party free tiers have limits; payment processing, hosting and API usage can cost money. Different stack and complexity from ShipFast; no paid ShipFast support or community. External shipping account reviewed, not hands-on tested by us.
Each comparison covers the workflow described above, rather than every paid feature.