SUBLIMEKEYS

SublimeKeys is a license key API for indie desktop app developers — generate, activate, and verify keys with one tiny endpoint. Device-locked activations, trials, and instant revocations, backed by offline verification that works up to 7 days without a network call. Built by a solo developer who needed this for his own apps (ReelNox Studio, BackDrop_, TimePeek), now open to every indie developer selling desktop software. Ideal customer: solo devs and small studios selling desktop apps via Stripe, Gumroad, or their own site who want real licensing without running their own license server. Main features: • REST API to issue, activate, verify, revoke keys • Official Python and Node.js/Electron SDKs, offline verification built in • Free tier: 1 product, 100 keys, 5 devices/key • Live in 12 languages, auto-detected, manual override, translated emails included • EU-hosted, HTTPS everywhere, keys stored as SHA-256 hashes only • Full data export via API any time — never held hostage.