Uptime Kuma is an easy-to-use self-hosted monitoring tool.

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.

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.

Datadog is a cloud-based monitoring and analytics platform that provides observability and security for cloud-scale applications

Get a beautiful status page in 10 seconds, without paying thousands of dollars!

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