Thunder Client

Hand-crafted lightweight Rest Client for testing APIs. Supports collections, environments, git collaboration and local storage.

Similar Tools

RapidAPI for Mac is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.
ReadyAPI is a low-code API testing platform for development teams that care about creating test automation across any workflow.
Test, scrape, generate, and automate without the pain and expense of hosting your own headless browsers.
Making API testing more scalable and insight-driven for CI/CD, API-first and microservices success
Burp or Burp Suite is a set of tools used for penetration testing of web applications. It is developed by a company named Portswigger who make freely available a Web Security Academy which has a range of lessons on penetration testing.
Browser and Mobile Automation Test Framework for Node.js