Insomnia

Insomnia is a sleek, developer-centric API design and debugging client crafted by Kong. Built with a focus on speed, privacy, and minimalist design, Insomnia allows software engineers to quickly craft, organize, and execute HTTP, GraphQL, gRPC, and WebSocket requests without unnecessary interface clutter.

The platform includes native OpenAPI specification editing with real-time schema linting, allowing developers to design APIs contract-first before writing implementation code. Insomnia features end-to-end encrypted team collaboration and Git sync capabilities, enabling engineering teams to store their API workspaces directly inside their Git repositories for decentralized version control.

Insomnia runs as a cross-platform desktop application on Windows, macOS, and Linux. It offers a free tier for local offline development, alongside paid cloud plans that unlock real-time encrypted cloud sync, team workspaces, and organizational user management.