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

Mock and modify HTTP request for exploratory testing.

Supercharge team collaboration by sharing screen capture, logs, and debugging information from local development.

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.

Fast, easy and reliable testing for anything that runs in a browser, Cypress is the new standard in front-end testing that every developer and QA engineer needs.