
Description: Cellist is a cloud-based mobile and web testing automation platform that allows users to easily create, execute, and scale automated tests across real mobile devices and browsers. It provides capabilities for cross-browser testing, native & hybrid app testing, manual testing, visual testing, and integrating with CI/CD pipelines.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Fiddler is a free web debugging proxy which logs all HTTP(S) traffic between your computer and the Internet. It allows developers to inspect traffic, set breakpoints, and fiddle with incoming or outgoing data. Fiddler can be used to debug traffic from virtually any application that supports a proxy like web browsers, mobile apps, IoT devices, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API