Milkman is a JavaFx-based workbench for crafting requests / responses. It is not limited to e.g. http (or more specifically rest) requests but can be extended in any imaginable way. It is optimized for fast startup and efficient workflow.


Restfox is described as 'Offline-first web HTTP client' and is a API Client in the development category. There are more than 50 alternatives to Restfox for a variety of platforms, including Mac, Windows, Linux, Web-based and Flathub apps. The best Restfox alternative is Bruno, which is both free and Open Source. Other great apps like Restfox are Postman, Insomnia REST Client, Yaak and Hoppscotch.
Milkman is a JavaFx-based workbench for crafting requests / responses. It is not limited to e.g. http (or more specifically rest) requests but can be extended in any imaginable way. It is optimized for fast startup and efficient workflow.


Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.








Runscope helps you monitor, log and measure API usage to solve API problems fast. Automatically monitor APIs without any coding. Runscope provides complete logging for all of your API traffic. Track down troublesome API calls with powerful search.




API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.




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.

All the user-friendliness of our Terminal version, now wrapped up in a sleek graphical interface.



Used httpyac CLI tool underneath, which helps you execute _.http and _.rest files. This can be used to quickly execute a single *.http file, but also to execute all files in a folder. httpyac supports HTTP, Rest, GraphQL, WebSocket und gRPC...

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






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.



