Restfox is an HTTP client application that allows users to test and interact with RESTful APIs. It provides a user-friendly interface for making HTTP requests, viewing responses, and managing API endpoints. Restfox is designed to help developers and testers streamline their API development and testing processes.

Additionally, Restfox offers plugin support to help developers modify request data before a request is sent, adjust response data after a response is received, set environment variables using the response data, and perform testing.