Keygen

Keygen provides an API for managing software licenses, entitlements, and device activation across desktop, server, and on‑premise applications. It supports validation and activation of license keys through official SDKs or generic HTTP calls, making it usable from languages such as Go, Rust, JavaScript, C/C++, C#, Swift, Java, and Kotlin. The service can be accessed as a managed cloud offering, which handles availability, backups, security, and scaling, or self‑hosted using the Community Edition (CE) that is free for personal and commercial use.

The Enterprise Edition (EE) adds features for larger deployments, including detailed request and event logs, multiple environments, role‑based permissions, SSO/SAML integration, and a private OCI‑compatible container registry. EE is distributed under a proprietary license and includes dedicated self‑hosting support. Both editions share the same code base, with CE receiving periodic LTS releases that incorporate fixes and features tested in the cloud version.

Keygen is positioned as a fair‑source licensing solution that aims to simplify distribution for developers of all skill levels while offering optional enterprise‑grade capabilities for organizations that require advanced auditing, permissions, and on‑premise control.