Keygen is now Fair SourceStar us on GitHub

Use Cases
- Software Application LicensingUse Keygen's flagship software licensing API to add license key validation, device activation and entitlements to any software product.
- Software Artifact DistributionUse Keygen's supplementary software distribution API to securely deliver artifacts and offer automatic updates to licensed users.
- No-code Licensing AutomationUse Zapier to integrate Keygen with your favorite tools, such as Stripe for payments, and Postmark for transactional emails. No code required.
- For On-Premise/Multi-Prem
- For Go Programs
- For Mac Applications
- For Container Images
- For Windows Programs
- For Electron Apps
- For WordPress Plugins
- For Tauri Apps
- For Python Packages
- For PHP Packages
- For Node Packages
- For RubyGems
Demos
Developers
- Self-Host KeygenLearn how to self-host Keygen's Community Edition for free, or self-host our Enterprise Edition for your business.
- Keygen Relay NEWUse Keygen Relay to securely distribute node-locked licenses in offline and air-gapped environments.
- Developer CLIUse Keygen's official CLI to sign and publish software releases. Integrate with our SDKs for secure automatic upgrades.
- Documentation
- API Reference
- Changelog
- Security
- Source Code
Resources
- Read the Source CodeKeygen is an Fair Source software licensing and distribution API. View the source code on GitHub to learn more. Build vs BuyBusinesses of all sizes face the question of whether to build or buy a licensing solution.
- Open Source
- Fair Source
- Affiliate Program
- Careers
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Pricing
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Keygen + Zapier

Use Keygen with Zapier to automate your licensing without code

Powerful no-code automations

Create a completely automated licensing flow using Keygen and Zapier — from initial license creation, to emails, to payments.

Flexible licensing backend

Quickly add license key validation, device activation and entitlements to your software application with Keygen's powerful licensing API.

Learn about licensing

Gated software distribution

Don't let unlicensed users download your software. Require a valid license for all software downloads and upgrades with Keygen's distribution API.

Learn about distribution