Cost / License
- Free
- Open Source
Application types
Platforms
- Python
- BSD
- Linux
- Mac
- Windows

Requester is described as 'HTTP client plugin for Sublime Text with an expansive feature set, modern UX, elegant syntax and first class support for testing' and is a API Client in the development category. There are more than 25 alternatives to Requester for a variety of platforms, including Mac, Linux, Windows, Web-based and Flathub apps. The best Requester alternative is Postman, which is free. Other great apps like Requester are Insomnia REST Client, Yaak, Hoppscotch and HTTPie for Terminal.

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.

Httpiness is aimed to be a simple, straightforward HTTP client which minimizes time to configure, send, reconfigure and resend requests in order to maximize development efficiency.


RESTClient can be used to test variety of HTTP communications and RESTful webservices. Friendly GUI, rich functionalities.






If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance.

Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.


Assertible is the easiest way to test and monitor your APIs and helps reduce bugs in web apps by providing tools to continuously validate endpoints and responses with a flexible interface to run your tests any time and place.




Powerful IDE to work with API. Harness the power of scenarios, autocompletion and syntax highlight for API development. Write tests, share code without leaving the comfortable development environment.





Gotcha HTTP Client is a lightweight http client that allows you to make requests and inspect responses.




EchoAPI is an all-in-one API development collaboration platform that offers essential features like API debugging, design, automated testing, stress testing, and documentation generation.