Instead of hosting software using a web hosting service or inhouse solution,software as a service doesn’t just provide a software solution but it also comes shipped on a server, accessible through the cloud, usually shared with other tenants.

Modern React starter kit with Bun, TypeScript, Tailwind CSS, tRPC, and Cloudflare Workers. Production-ready monorepo for building fast web apps.

• UpdatedDec 15, 2025
• TypeScript

Awesome list of open-source startup alternatives to well-known SaaS products 🚀

• UpdatedSep 3, 2025
• Python

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.

• UpdatedDec 17, 2025
• C#

A free, open-source SaaS app starter for React & Node.js with superpowers. Full-featured. Community-driven.

• UpdatedDec 8, 2025
• TypeScript

A collection of services with great free tiers for developers on a budget. Sponsored by Mockoon, the best mock API tool.https://mockoon.com

• UpdatedDec 16, 2025

Turn your software into a business.

• UpdatedDec 16, 2025
• Python

🚀🎉📚 SaaS Boilerplate built with Next.js + Tailwind CSS + Shadcn UI + TypeScript. ⚡️ Full-stack React application with Auth, Multi-tenancy, Roles & Permissions, i18n, Landing Page, DB, Logging, Testing

• UpdatedDec 12, 2025
• TypeScript

Wave - The Software as a Service Starter Kit, designed to help you build the SAAS of your dreams 🚀 💰

• UpdatedDec 9, 2025
• CSS

A container platform that needs no Kubernetes learning, Build, deploy, assemble, and manage apps on Kubernetes, no K8s expertise needed, all in a graphical platform.

• UpdatedDec 17, 2025
• Go

🔥 Enterprise SaaS Starter Kit - Kickstart your enterprise app development with the Next.js SaaS boilerplate 🚀

• UpdatedDec 16, 2025
• TypeScript

Build your own SaaS business with SaaS boilerplate. Productive stack: React, Material-UI, Next, MobX, WebSockets, Express, Node, Mongoose, MongoDB. Written with TypeScript.

• UpdatedMar 21, 2025
• TypeScript

Automatic multi-tenancy for Laravel. No code changes needed.

• UpdatedDec 16, 2025
• PHP

Beautiful Open-Source Form Builder

• UpdatedDec 16, 2025
• PHP

SaaS Boilerplate - Open Source and free SaaS stack that lets you build SaaS products faster in React, Django and AWS. Focus on essential business logic instead of coding repeatable features!

• UpdatedNov 20, 2025
• TypeScript

Practical marketing resources to get the first 10/100/1000 users for your SaaS/App/Startup

• UpdatedNov 22, 2025

Full-Stack TypeScript toolkit that enhances Prisma ORM with flexible Authorization layer for RBAC/ABAC/PBAC/ReBAC, offering auto-generated type-safe APIs and frontend hooks.

• UpdatedDec 4, 2025
• TypeScript

Silex is an online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.

• UpdatedDec 14, 2025
• JavaScript

Run multiple websites using the same Laravel installation while keeping tenant specific data separated for fully independent multi-domain setups, previously github.com/hyn/multi-tenant

• UpdatedMay 11, 2024
• PHP

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.

• UpdatedNov 18, 2025
• Svelte

Oqtane is an open-source developer productivity platform for building modern .NET applications and websites that run on Web, Desktop and Mobile.

• UpdatedDec 16, 2025
• C#