A browser extension and Ruby gem to improve the debugging experience when testing Rails applications

Sonic is a platform that integrates remote control debugging and automated testing of mobile devices, and strives to create a better user experience for global developers and test engineers.

Exploratory testing assistant for Chrome and Firefox. Adds common problematic values and edge cases to the context menu (right-click) for editable elements, so you can keep them handy and access them easily during exploratory testing sessions.

Bugs. Happen. Debugging and Troubleshooting Reimagined

Next-gen browser to build, test & debug mobile websites.

Charles is a HTTP proxy that enables you to see traffic between your machine and the backend