Next.js + Polar SaaS Boilerplate
Looking for a modern Next.js + Polar boilerplate to launch your SaaS quickly? supastarter is the all-in-one starter kit that comes with full Next.js and Polar integration — built for subscriptions, sponsorships, and funding your SaaS or open-source projects with ease.Next.js+PolarGet supastarter for Next.jsRead Polar setup guide
Authentication
Let your users sign up and login with password, magic link or oAuth.
Payments
Charge your users with subscriptions. Choose your preferred payment provider.
Internationalization
Reach more customers by making your app multilingual.
Mails
Send transactional emails to your customers.
Style
Modern, beautiful UI. Fully customizable.
API
Reusable, extensible and type-safe REST-API for your SaaS.
Database
Access your data in a type-safe way with Prisma or Drizzle.
Organizations
Let your customers create organizations, add members and share resources.
AI
Add artificial intelligence to your app and give your customers superpowers.
SaaS Blog
Multi-language, MDX-based marketing blog to keep your customers up to date with the latest news.
SaaS Analytics
Track your users and their behavior for your SaaS and marketing pages.
SaaS Landing Page
A beautiful landing page with features, pricing and newsletter signup is included.
Learn moreSaaS Onboarding
Multi-step onboarding process to help your customers get started with your app.
Learn moreSaaS Documentation
Multi-language, MDX-based documentation to help your customers get started with your app.
Learn moreContact form
Let your customers contact you.
SaaS Legal Pages
Multi-language placeholder pages for privacy policy and terms of service are included.
Fully typed codebase
From backend to frontend, we are using TypeScript for full type safety.
Cursor / Windsurf support
Cursor / Windsurf rules are included for AI code generation.
One-time purchase. Unlimited projects.
supastarter is a one-time purchase with no recurring fees. You get access to the repository and can use it for as many projects as you want.
Lifetime access
for one developer
- All features includedAuthentication, billing, user management, and more. See list of features above.
- Lifetime updatesLast update to codebase: 1 day ago
- Saves you 120+ hours
- Exclusive discord server for support
🐻 Why Use Polar with Next.js?
Polar is a modern platform for subscriptions, sponsorships, and developer funding. It’s designed for SaaS founders, indie hackers, and open-source maintainers who want an easy way to monetize their work without handling complex payment and compliance infrastructure.
✅ Benefits of using Polar with Next.js:
- Subscription and sponsorship support — great for SaaS or open-source projects
- Built-in funding tools — manage memberships, sponsorship tiers, and recurring revenue
- Simple integration — modern APIs and developer-friendly docs
- Open-source friendly — Polar was built with developers in mind
- Community monetization — ideal if you’re building SaaS + want to support OSS
When combined with Next.js, Polar gives you a streamlined way to integrate billing and sponsorships directly into your SaaS or product platform.
🚀 What is supastarter?
supastarter is a production-ready SaaS boilerplate designed for speed and flexibility. It comes with Next.js and Polar fully integrated, so you can start accepting subscriptions or sponsorships right away.
Whether you're launching a SaaS, building a membership site, or monetizing an open-source project, supastarter provides all the essentials you need to ship fast.
🔧 Perfect for Modern SaaS and Open Source
supastarter + Polar is the perfect combo for:
- SaaS founders looking for simple subscriptions
- Indie developers monetizing small apps or tools
- Open-source maintainers offering sponsorships or memberships
- Communities wanting to support ongoing development
💡 Who Is This For?
- Developers searching for a Next.js Polar starter template
- SaaS founders who want to monetize without heavy setup
- Open-source maintainers seeking sponsorship income
- Teams who value simple, developer-friendly billing solutions
🧪 Built by Developers, for Developers
supastarter gives you auth, billing, subscriptions, and SaaS scaffolding out of the box. With Polar, you can easily add funding and sponsorship models to your Next.js app.
With Next.js, you get performance and flexibility. With Polar, you get subscriptions and developer-friendly monetization. With supastarter, you get a complete SaaS foundation that helps you launch faster and grow sustainably.
See what supastarter customers are building
Discover the diverse range of projects and ideas that our 800+ customers have built with supastarter.
