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Insomnia

API client for REST, GraphQL, and gRPC

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Insomnia is an API client and development tool for sending requests, organizing collections, testing REST and GraphQL APIs, managing environments, and collaborating on API workflows. It is often valued for a clean developer experience.

Insomnia belongs in comparisons when buyers want a focused API client rather than a broad platform. Evaluate request building, environment management, Git workflows, team sync, plugin needs, GraphQL support, and how it compares with Postman for daily use.

It belongs on a shortlist when the buyer needs API work to be easier to test, document, and share. Test import support, environments, collaboration, automation, docs output, governance, and adjacent options such as API clients, developer portals, and OpenAPI tooling.