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SublimeKeys

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SublimeKeys - Product Image

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.

Comments

Achievement

Seailife Top 1 Daily WinnerSeailife Top 1 Daily Winner

Submitted by

Patrick Chen

Patrick Chen

Launch Date
2026-08-01
Platform
web
Pricing
freemium
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Tech Stack

#Next.js#TypeScript#Supabase#Stripe#Tailwind CSS

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