Insomnia is an open-source collaborative API development platform that enables developers to design, test, and debug APIs through an intuitive interface.

Insomnia demo screenshot

About Insomnia

Kong Insomnia provides a comprehensive API development environment that allows teams to build, test, and document APIs across multiple protocols. It offers a clean, developer-friendly interface that balances powerful features with simplicity, making it a popular alternative to other API tools.

Key Features

  • Multi-protocol support (HTTP, REST, GraphQL, gRPC, SOAP, WebSockets)
  • Collaborative API development environment with Git integration
  • 350+ open source plugins for workflow extensibility
  • Local, Git, and cloud-based API development capabilities
  • Built-in automation and testing tools
  • Design-first approach with intuitive UI
  • API mocking functionality
  • Real-time request/response debugging