🔑 Web SaaS · REST API · GDPR-Compliant

LocalLicense

License key management for indie developers. Protect your apps with HMAC-SHA256 keys, REST API validation, and Stripe subscriptions.

HMAC-SHA256 REST API .NET SDK Stripe

Replaces: Paddle · Gumroad · LicenseSpring

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✓ Powers all 37 LocalData-AI products

Why LocalLicense?

🔐

Security by Design

Every key contains an HMAC-SHA256 checksum. Validate online via REST API or fully offline in your app — no network required at runtime.

bool ok = LicenseKeyGenerator
  .ValidateChecksum(key, secret);
🇪🇺

GDPR-Compliant by Design

API hosted in the EU. Only a device fingerprint hash is transmitted — no personal data, no processing agreement needed under GDPR Art. 28.

💰

No Revenue Cut

Paddle takes 5%, Gumroad takes 10%. LocalLicense charges a flat monthly fee — your revenue stays yours, no matter how much you sell.

Simple Pricing

Free

€0/mo
  • 1 product
  • 50 keys / month
  • Online + offline validation
  • .NET SDK (NuGet)
  • Community support
Start Free

Starter

€15/mo
  • 5 products
  • 500 keys / month
  • Everything in Free
  • Bulk key import/export
  • Email support (48h)
Get Starter

Pro

€35/mo
  • 20 products
  • 5,000 keys / month
  • Everything in Starter
  • Webhook notifications
  • Email support (24h)
Get Pro

Business

€79/mo
  • Unlimited products
  • Unlimited keys
  • Everything in Pro
  • Priority support (4h)
  • SLA 99.9% uptime
Get Business

All plans include a 14-day free trial. Cancel anytime. locallicense.io ↗