Awesome Open Source SaaS Boilerplates

A curated collection of free Open-Source SaaS boilerplates and starter templates to build your next software-as-a-service project. Features enterprise-grade stacks from React/Node.js to Python/Django solutions.

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Contents

• Open Source SaaS Boilerplates
• Browser Extensions
• Web Development
  • React & Next.js
  • Sveltekit
  • Node.js
  • Python
  • Django
  • Flask
  • Ruby on Rails
  • .NET Core
• Mobile Development
  • Android
  • iOS
  • React Native
• Star History

Open Source SaaS Boilerplates

Production-ready, open source templates for building software-as-a-service applications:

• Open SaaS - React/Node.js/Prisma stack with Stripe/Polar.sh/Lemon Squeezy, OpenAI, AWS S3, admin dashboard & blog.
• BoxyHQ SaaS Starter Kit - Enterprise-ready with SSO, audit logs, and multi-tenant features.
• Next.js SaaS Starter - Next.js with Postgres, Stripe, and shadcn/ui.
• Nextacular - Next.js with workspaces and subscription management.
• SaaS Boilerplate by Async Labs - Production-ready with team collaboration.
• djangorocket - Django SaaS starter.
• fireact.dev - React/Typescript stack with Stripe, Firebase and i18n multilingual for B2B SaaS.
• LastSaaS - Open-source AI-native SaaS platform foundation with multi-tenant auth, Stripe billing, white-label branding, MCP server, webhooks, and admin dashboard. Built with Go, React, TypeScript, and MongoDB.
• SpeedPy - Free, MIT-licensed Django SaaS boilerplate with APIs, teams, billing, and an MCP server for AI agents.

Browser Extensions

• Extro - Open source browser extension starter kit.
• chrome extension svelte-typescript boilerplate - Boilerplate for Chrome Extension Svelte Typescript project.

Web Development

React & Next.js

• Open SaaS -- React/Node.js/Prisma - Stripe, Polar.sh, or Lemon Squeezy, OpenAI API app examples, AWS S3 file upload, Admin dashboard, & Blog w/ Astro.
• Next.js SaaS Starter - Get started quickly with Next.js, Postgres, Stripe, and shadcn/ui.
• Next.js Boilerplate - Free and open source Next.js starter.
• Nextacular - Next.js SaaS boilerplate.
• fireact.dev - React/Typescript stack with Stripe, Firebase and i18n multilingual for B2B SaaS.
• LastSaaS - Open-source AI-native SaaS platform foundation with multi-tenant auth, Stripe billing, white-label branding, MCP server, webhooks, and admin dashboard. Built with Go, React, TypeScript, and MongoDB.
• Platforms Starter Kit - The all-in-one starter kit for building multi-tenant applications.

Sveltekit

• CMSSaasstarter - A modern SaaS template/boilerplate built with SvelteKit, Tailwind, and Supabase. Includes marketing page, blog, subscriptions, auth, user dashboard, user settings, pricing page, and more.

Node.js

• BoxyHQ SaaS Starter Kit - Enterprise-ready SaaS starter kit.
• SaaS Boilerplate by Async Labs - Production-ready SaaS boilerplate.
• Graphile Starter - Full-stack application boilerplate.
• Hackathon Starter - Boilerplate for Node.js web applications.

Python

• Rob's Awesome Python Template - A versatile and modern Python template.

Django

• djangorocket - Django SaaS starter.
• SpeedPy - Free, MIT-licensed Django SaaS boilerplate with APIs, teams, billing, and an MCP server for AI agents.

Flask

• Flask App Builder - Simple and rapid application development framework.
• Enferno Framework - Flask based framework.

Ruby on Rails

• Rails Tabler Starter - Ruby on Rails starter kit.

.NET Core

• Clean Architecture and Domain Driven Design Template - .NET Core solution template for creating your own application using Clean Architecture, utilizing building blocks from Domain-Driven Design.
• FullStackHero .NET 8 Starter Kit - With ASP.NET Core Web API & Blazor Client.

Mobile Development

Android

• Android Architecture Blueprints - MVP architecture samples.

iOS

• Swift 5 Module Template - Boilerplate for reusable Swift 5 modules.

React Native

• Infinite Red Boilerplate - Infinite Red's battle-tested React Native project boilerplate, along with a CLI, component/model generators, and more.
• thecodingmachine boilerplate - A React Native template for building solid applications 🐙, using JavaScript 💛 or Typescript 💙.
• obytes boilerplate - A template for your next React Native project: Expo, PNPM, TypeScript, TailwindCSS, Husky, EAS, GitHub Actions, Env Vars, expo-router, react-query, react-hook-form.
• wataru-maeda boilerplate - Expo + Redux + React Navigation pre-setup typescript template (expo SDK 51).

Star History