Supastarter is a SaaS starter kit and boilerplate for Next.js, claiming to be production-ready and designed to help developers ship SaaS products faster. It comes with built-in authentication, payments, multi-tenancy, and other features, allowing developers to focus on the parts customers truly care about.
Main capabilities include: an authentication system supporting passwords, Passkeys, magic links, OAuth, and 2FA, with forgot/reset password flows, roles and permissions, super admin and impersonation, and fully customizable flows; payments and billing, covering checkout, webhooks, and subscriptions, supporting subscriptions or one-time payments, usage-based billing, per-seat billing, and the ability to switch payment providers; organizations and multi-tenancy, allowing you to create organizations and add members, control whether organizations are shown/hidden/disabled, and easily remove them; internationalization, providing ready-made translations, a language switcher, and translatable email templates; a dashboard and admin backend; type-safe data access, with a choice of database and ORM, providing typed APIs with permissions, easy migrations, OpenAPI specification and UI, and reusable clients; AI features, with a built-in chatbot example, multiple AI adapters, and the ability to build any AI workflow; a marketing website, including landing pages and hero visuals, features and pricing sections, newsletter signup, and responsive design; a UI based on modern design and compatible with shadcn/ui; in addition, it also includes building blocks such as background tasks and cron jobs, offline development, SaaS onboarding, documentation, and legal pages.
The codebase is based on Next.js, React, and TypeScript, follows the AGENTS.md and Agent Skills specifications, and can be extended by major coding agents such as Cursor, Claude Code, and Codex. It uses a structured monorepo that agents can navigate; provides end-to-end type safety; has no vendor lock-in and is fully customizable; and is said to have been used in multiple real products.
How to use it: after acquiring it, develop based on this boilerplate and use the built-in modules to quickly build a SaaS. Pricing is a one-time purchase with lifetime access, with no subscription and recurring fees; different seat plans are offered: 1 developer seat (including GitHub access), unlimited personal projects (commercial use allowed), and lifetime updates; up to 5 developer seats, unlimited team projects, including a 60-minute consulting call and priority email support; up to 10 developer seats, unlimited client projects, white-label ready, and a private Discord channel. FeatherFlow also offers done-for-you building services.
Use cases: independent developers, startup teams, and agencies building SaaS products, as well as projects that want to use AI coding agents to accelerate development.
Limitations: details such as the specific tech stack (such as the default database and ORM), price amounts, and platform support are not described in detail and need further confirmation.
