
Description: WinMerge is an open source differencing and merging tool for Windows. It allows you to compare both folders and files, presenting differences in a visual text format that is easy to understand and handle. It is useful for consolidating changes between project versions or managing code branches.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: VisualDiffer is a free, open source cross-platform visual diff tool for developers. It allows comparing images, directories, and version controlled projects to detect file changes over time. Key features include split screen viewing, pixel and file differencing, filtering file types, ignoring file differences, etc.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API