ApiGen : ApiGen is the tool for creating professional API documentation from PHP source code, similar to discontinued phpDocumentor/phpDoc.
Hoppscotch : A free, online, open source API request builder
htty : htty is a console application for interacting with web servers. It’s a fun way to explore web APIs and to learn the ins and outs of HTTP.
Browsershot : This PHP package can convert a webpage to an image or pdf. The conversion is done behind the scenes by Puppeteer which controls a headless version of ...
Psalm : Psalm is a static analysis tool for finding errors in PHP applications.
YOURLS stands for Your Own URL Shortener. It is a small set of PHP scripts that will allow you to run your own URL shortening service (a la TinyURL or bitly).