
Target Audience
App Alternatives

Next.js boilerplate for launching startups faster

Complete Next.js starter kit for SaaS products

The production-ready SaaS starter kit for building and launching SaaS applications.

Production-ready SaaS starter kits for Astro, Next.js and SvelteKit

A free, open-source SaaS boilerplate built with React, Node.js, and Prisma

React component library and design system for SaaS products
What is Supastarter
Supastarter is a full-stack starter kit for building SaaS products with Next.js, Nuxt, or TanStack Start. It includes authentication, payments, organizations, API infrastructure, admin tools, email, storage, analytics, background jobs, SEO, and AI-ready workflows in a production-focused codebase.
Overview
Supastarter gives developers a complete starting point for a SaaS application instead of making them assemble the usual infrastructure themselves. The current product supports Next.js, Nuxt, and TanStack Start. The Next.js version uses a structured monorepo with separate marketing and SaaS applications. It includes authentication, multi-tenant organizations, billing, email, storage, analytics, monitoring, background jobs, admin functionality, SEO, testing, and AI workflows. Payment providers include Stripe, Lemon Squeezy, Polar, Creem, and Dodo Payments. The source code is provided after purchase and can be customized for unlimited commercial projects under the applicable license.
Who should use it
- You are building a serious SaaS product and want the core infrastructure ready
- You want authentication, organizations, billing, and admin functionality without wiring everything yourself
- You are using Next.js, Nuxt, or TanStack Start
- You want to choose between several payment providers
- You want a codebase that works well with AI coding agents
- You expect your product to need multi-tenancy, roles, APIs, email, storage, analytics, and background jobs
Key Features
- Next.js, Nuxt, and TanStack Start versions
- Password, passkey, magic link, OAuth, and 2FA authentication
- Roles, permissions, and super-admin functionality
- Multi-tenant organizations and team management
- Stripe, Lemon Squeezy, Polar, Creem, and Dodo Payments support
- Subscription, one-time, usage-based, and seat-based billing
- Typed API and database access
- Transactional email
- Background jobs and cron jobs
- S3-compatible file storage
- Admin UI
- Marketing site and MDX blog
- SEO metadata and automatic sitemap generation
- Product and marketing analytics
- Sentry monitoring
- Playwright end-to-end testing
- Docker-based local development
- AI workflow and chatbot foundations
- AI coding agent support with AGENTS.md and Agent Skills
Integrations Supported
Frequently Asked Questions
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