SUPANEXT is a Next.js and Supabase starter kit designed to get money-making projects off the ground fast. Rather than rebuilding the same foundations for every new idea — authentication, database, payments, subscriptions, credits, a landing page and a blog — you start from a complete, production-ready codebase and spend your time on the product itself.
It is built on a modern stack: Next.js 15 and Tailwind CSS 4, Supabase for auth and data, Stripe or LemonSqueezy for payments, and Resend for transactional email. For AI applications it includes working examples out of the box, such as an AI image generation demo and an AI chat, with OpenAI and Replicate integrations and a credit system for monetising AI usage.
SUPANEXT also leans into growth. The landing page and blog are optimized for search engines, and a built-in AI blog generator helps you produce and optimize posts to rank better. The project is a one-time purchase with lifetime access, source-code access, documentation, all current and future features, and lifetime updates, created by Jake Prins.
