This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.
Platforms
- Mac
- Windows
- Linux
- GNU Emacs

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.
This is a tool to manually explore and test HTTP REST webservices. Runs queries from a plain-text query sheet, displays results as a pretty-printed XML, JSON and even images.

Main goal of this VSCode extension is storing all HTTP request & response data automatically as files in a VSCode workspace.

API Test Base is a free, offline-first tool for testing APIs and their side effects — the records an API writes to a database, the messages it publishes to a queue, the downstream services it calls. Test cases are created with a no-code / low-code UI, and the same tests can be...


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Api Quest is a desktop application designed for executing HTTP requests, storing them on the local file system, and providing portability. Whether you're a developer, QA or system engineer, this tool offers solution for handling HTTP requests effectively.

Slumber is a TUI (terminal user interface) HTTP client. Define, execute, and share configurable HTTP requests.
A cross-platform HTTP client desktop application for testing HTTP and REST APIs, WebSocket, GraphQL (including subscriptions) and gRPC endpoints.



Build, test, and debug your APIs with a self-hosted tool that does what you actually need. Scripts, environments, OAuth 2.0, code generation, and an AI wizard that builds collections from your docs — no account required, no limits.




Keep your http requests in a single file that lives in your projects repo. This app lets you run your http requests from a .http file and includes features like load testing, pre and post request scripts, and request chaining.



Zaku is a native Rust, local-first, open-source API client engineered for speed and productivity.

