Compare It! has been discontinued. Similar apps include WinMerge, which is free and open source. Other options are Beyond Compare, KDiff3, SyncToy and Diffchecker. There's no shortage of Diff Tools like Compare It!, with more than 50 alternatives for Windows, Mac, Linux, the web and self-hosting.
Perform detailed folder and file comparisons on Mac with side-by-side expandable trees, colour and icon indicators, content-based matching, manual synchronisation, filename templates, quick reload, tabbed interface, drag-and-drop, and intuitive visual controls.
Thailand
Native macOS file and folder comparison, three-way merge, and Git review, with syntax highlighting and AI agent change review.
United States
DiffMerge is a graphical file comparison program for Windows, Mac OS X and Unix, published by SourceGear.
United States
WinMerge 2011 series is a fork of the original WinMerge application that compiles without ATL/MFC dependencies to enable zero-budget developers to build WinMerge from sources using Visual C++ Express editions.
Germany
EU
GNU Diffutils is a package of several programs related to finding differences between files.
Difftastic is a diff tool that compares files based on their syntax. It supports over 20 programming languages and when it works, it's fantastic.
New Zealand
Visualize folders side-by-side and find immediately which files are different, colors help to understand the diff type. Colors identify older, modified and newer files.
ItalyEU
Compare PDFs intelligently with i-net PDFC. It detects content differences—not just text or images—and displays them beautifully, like holding two pages to the light.
GermanyEU
WinMerge JP is a fork of the original WinMerge, but after 2018 the two are nearly identical. WinMerge JP's features including 3-way compare has been merged into the original.
SmartSynchronize is a multi-platform file and directory compare tool. It allows you to compare files or perform 3-way-merges, both with the ability to edit the file contents. SmartSynchronize is specialized in comparing directory structures (for example, of software projects)...
Kup is created for helping people to keep up-to-date backups of their personal files. Connecting a USB hard drive is the primary supported way to store files, but saving files to a server over a network connection is also possible for advanced users.
