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Insomnia

Open-source API client for REST, GraphQL, and gRPC.

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What we love

  • Open source
  • Clean, fast UI
  • Strong GraphQL + gRPC support

What to watch

  • Smaller team features than Postman
  • Recent UX changes annoyed some

Best for

Developers who want a faster, cleaner Postman alternative.

Key features

  • REST / GraphQL / gRPC / WebSocket
  • Environments + variables
  • Insomnia.dev for cloud sync
  • Open source
  • Plugin ecosystem

What is Insomnia?

Insomnia (Kong) is a beloved open-source Postman alternative — fast, clean, and supports REST, GraphQL, WebSocket, gRPC.

Who is it for?

Insomnia is a great fit for teams looking for a developer tools tool that fits the freemium tier. It's especially loved by software engineers shipping production web apps.

Key tags

API TestingOpen SourceGraphQL

How it compares

We curate Insomnia among the top Developer Tools tools on saas.fyi. Browse all Developer Tools tools to compare alternatives, or use the directory's search and filters to find a closer fit.

Pricing

Free, Pro from $5/user/mo. Pricing tier: Freemium. Always confirm current pricing on the official site — SaaS pricing changes frequently.

Quick facts

  • Category: Developer Tools
  • Pricing: Freemium — Free, Pro from $5/user/mo
  • Website: insomnia.rest
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