RESTClient
lastmod 2026-11-10created 2015-04-252 edits
RESTClient is a Java-based desktop application for testing HTTP and RESTful web services. In its GUI you specify the request method, headers, body, and authentication details, send the request, and inspect the response status, headers, and body. Requests can be saved to files for reuse, or run in batches with the command-line version. Developed by WizTools.org, it is an open-source tool that predates the widespread use of tools such as Postman and Insomnia.
Java application to test HTTP/RESTful webservices.