WinMerge is an open source file comparison tool. This open source utility can help you visually determine differences or changes in files. It is commonly used to determine what has changed between project versions, and can then be used to merge any changes between those versions.
The diff compare software is offered a zipped version, enabling you to do your text comparison, compare files and perform file merging on the go.
Changelog File Comparison and Merging Tool
Authors Website: Project Page
Creator: Dean P. Grimm - Thingamahoochie Software
License: Open Source
Supported OS: Windows 11, 10, 8, 7
Extracted File Size: 24 MB
Download: Get the stand alone zipped version
How to make WinMerge Portable
Create a file called WinMerge.ini and place it in the extracted folder on your USB.