Insomnia - API Testing Tool
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Insomnia

9.4
Excellent

Free Plan • From $25/mo for Pro version

update Last updated: Mar 5, 2026
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description Insomnia Overview

Insomnia is a powerful, elegant, and open-source API client that has gained a strong following as a streamlined alternative to Postman. Acquired by Kong Inc., it focuses on a superb developer experience for designing, debugging, and testing REST, GraphQL, gRPC, and SOAP APIs. Its interface is clean and fast, with excellent support for environment variables, code generation, and plugin extensions. The core app is free, with paid Syncing features for teams.

It shines in its simplicity and speed for day-to-day API interaction and test suite creation. Insomnia is ideal for individual developers and small teams who prioritize a fast, uncluttered, and locally-focused tool for API development and testing, without the platform-heavy approach of its main competitor.

recommend Best for: Developers and teams working with multiple API types who value an intuitive interface and strong community support.

info Insomnia Specifications

balance Insomnia Pros & Cons

thumb_up Pros
  • check Supports multiple API types including REST, GraphQL, gRPC, and SOAP
  • check Open-source with a strong community
  • check Clean and intuitive interface
  • check Robust debugging tools
thumb_down Cons
  • close Limited mobile app functionality compared to competitors
  • close Some advanced features require Pro version
  • close Learning curve for new users
  • close Occasional bugs reported by users

help Insomnia FAQ

Is Insomnia free?

Yes, it offers a free plan with basic features. The Pro version is paid and includes additional tools.

Does Insomnia support GraphQL?

Yes, Insomnia fully supports GraphQL APIs for testing and debugging.

Can I use Insomnia on mobile devices?

Insomnia has a mobile app but it lacks some features available in the desktop version.

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