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Best open-source SaaS boilerplate. Free, powerful & extendable.

Open source SaaS template

Concept

The idea of the Cascade template is that it offers as little bloat as possible regarding technology choices and gets you started with writing business logic from day one. The only friction before fully working boilerplate on your localhost:3000 is the .env file with correct environmental variables.

Visit Cascade 📦

Try out the demo here 🎮

Explore the documentation 📄

Tools

Most of the tools selected for Cascade are open-source(OSS). Some of them are self-hosted(SH). All tools that are SaaS have generous free plans and should get you started without any additional costs.

Core:

Business:

  • Lemon Squeezy - modern and simple merchant of record
  • PostHog(SH) - advanced user analytics & funnels
  • Plausible(SH) - simple but powerful page analytics

Support:

  • Sentry(SH) - error & bug tracking for faster fixes
  • Trigger.dev(SH) - background job processing(send slack notifications on new user sign-up)
  • Storybook(OSS) - manage your components & develop them in isolation
  • Lost Pixel(OSS) - simple frontend tests
  • Crisp - dead simple but powerful support chat

Honorable mentions

  • Without Shadcn this boilerplate would not happen. Period. I rely on his UI a lot and took a lot of inspiration & code from his open-source projects
  • https://github.com/lmsqueezy/nextjs-billing & Branko's work on it; I took a bunch of ideas for LS integration there
  • https://github.com/sadmann7/shadcn-table & Sadman for showcasing brilliant integration of Tanstack table with Shadcn/ui, I repurposed the code for Prisma
  • Pontus and his impeccable tech stack in Midday.ai inspired me to create the boilerplate at the first place