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What it is
SublimeKeys is a licensing and billing platform built for indie developers shipping paid software. It issues and verifies license keys, runs Stripe-powered subscriptions and one-time purchases, and gives you a customer dashboard — so you don't have to build a licensing backend from scratch.
How to use it
Sign in with just your email (no password), create a product, and drop the official Python or Node.js SDK into your app in a few lines. Your app calls the SDK to validate licenses; SublimeKeys handles the server side.
Core features
License key issuance and verification, offline-capable via Ed25519 signing
Stripe-powered subscriptions and one-time purchases
Customer dashboard for managing products and licenses
Official Python and Node.js SDKs
12-language support across the UI and transactional emails
Optional "Done-For-You Packaging" service for developers who want their app packaged and distributed for them
Use cases
Any indie developer selling a desktop or web app who needs licensing and payments handled without building it themselves — from a first paid release through scaling subscription plans.
Pricing
Free to start. Paid Pro and Business plans unlock higher license volume and usage limits, billed monthly via Stripe.
Support & company
Built and run by a solo developer at Sublimearts.io. Support via [email protected].
Login / Sign up
Passwordless — sign in with just your email at keys.sublimearts.io/login.