Insomnia REST Client is described as 'A powerful REST API Client with cookie management, environment variables, code generation, and authentication for Mac, Window, and Linux' and is a very popular API Client in the development category. There are more than 100 alternatives to Insomnia REST Client for a variety of platforms, including Windows, Mac, Linux, Web-based and Google Chrome apps. The best Insomnia REST Client alternative is NativeRest. It's not free, so if you're looking for a free alternative, you could try Bruno or Postman. Other great apps like Insomnia REST Client are Yaak, Hoppscotch, HTTP Toolkit and Insomnium.
ReqResp is a fast, lightweight, and modern API testing app designed for developers, testers, and backend engineers. It helps you create, send, and analyze HTTP requests with ease — anytime, anywhere.
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Create multi-step HTTP API checks in a visual editor by chaining requests, extracting response values, applying conditional logic, and setting assertions. Runs can be scheduled or triggered in CI/CD, logging payloads, assertion results, and timings for debugging.
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Resonance is a local-first, zero-account API client application designed to provide an excellent user experience for testing and interacting with APIs. Built with Tauri, it offers a modern and intuitive interface for developers.
GetAPI is a native macOS app that simplifies REST API testing by allowing users to import from Postman, make HTTP requests, and view responses in a streamlined interface.
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Free browser-based OpenAPI editor from Postman. Design or import a Swagger 2.0, OpenAPI 3.0, or OpenAPI 3.1 spec (YAML or JSON) and see live documentation with inline validation as you type. No signup, no install. Part of Postman's suite of free developer tools at postman.
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ThirdWatch is a next-generation API monitoring platform designed for development teams who need reliable uptime tracking across all their services.
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Fast, offline-first REST API client for testing and debugging APIs — no account, no cloud, collections stored as plain JSON files on your disk.
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Use Test API for restful api testing. This postman alternative test rest api online and use post request online to test API endpoint.
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