KeyMint

KeyMint is a self-hosted license key manager built for indie hackers and digital product sellers. Lemon Squeezy charges $29/month to manage your license keys. KeyMint is a one-time $49 purchase — you own the code, you run it on your own server, no recurring fees ever. You generate license keys for your products, set activation limits, and validate keys via a simple API endpoint. Buyers hit your endpoint to check if their key is valid. Everything runs on your own Railway + Neon stack. Built with React 19, Express 5, PostgreSQL, and Drizzle ORM. Deploy in under 15 minutes with the included step-by-step guide. Full source code included, MIT licensed. Who it's for: Gumroad sellers, Lemon Squeezy sellers, or anyone selling digital products who wants to add license key validation without paying monthly SaaS fees.