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

Simple animated GIF screen recorder with an easy to use interface.

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.

Don’t just observe. Take action. The only app monitoring platform built for developers that gets to the root cause for every issue.

A screenshot/screenvideo tool! Also allows you to do basic alterations to the screenshots (arrows, blur, ...)

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