Sonar is a platform for debugging mobile apps on iOS and Android. Visualize, inspect, and control your apps from a simple desktop interface. Use Sonar as is or extend it using the plugin API.
Radare is a portable reversing framework that can...
zines about systems & debugging tools
Webhook Tester allows you to easily test webhooks and other types of HTTP requests.
Differentiate HTTP headers and content body of two GET URLs.
Kint for PHP is a tool designed to present your debugging data in the absolutely best way possible.
In other words, it’s var_dump() and debug_backtrace() on steroids. Easy to use, but powerful and customizable. An essential addition to your development toolbox.
Charles is an HTTP proxy / HTTP monitor / Reverse Proxy that enables a developer to view all of the HTTP and SSL / HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information).
A tool for quickly profiling variables and resources used by PHP.
FirePHP enables you to log to your Firebug Console using a simple PHP method call.
All data is sent via response headers and will not interfere with the content on your page.
FirePHP is ideally suited for AJAX development where clean JSON and XML responses are required.