Keygen is a fair source software licensing and distribution API built with Ruby on Rails. For developers, by developers.

Software licensing and registration using digital signatures and public cryptography 🪪

📊 ScanCode Workbench is a desktop app to review and conclude license and origin from code scans generated by ScanCode Toolkit.

JWT based remote licensing server.

Keygen reference SDK for Go. Integrate license activation, automatic updates and offline licensing for Go binaries.

An example of how to implement software licensing and device activation in an Electron application

A library for generating and verifying license keys.

Cool links, tools & papers related to Open Source Licensing

An example Node.js app that integrates Keygen with Paddle for accepting payments.

An example implementation of offline activation for air-gapped machines using QR codes, signed and encrypted license files, and a mobile device.

An example Electron app that uses Keygen for licensing and auto-updates.

Client API to access the functionality of Cryptolens Web API

View and paste common software licenses into your project

An example Node.js app that integrates Keygen with Stripe for accepting payments.

An example WordPress plugin that uses Keygen for site-locked licensing.

Software License Manager: Docker deployable Flask REST API server with MongoDB database, simplifying software license management for easy integration and efficient tracking

A macOS library that implements robust activation and validation of software licenses.

DeltaCode: compare two codebase scans (from ScanCode) to detect significant changes.

An example Node server that performs license creation, activation and validation using Keygen.

An example implementation of a node-locked license activation flow using Keygen and Python