DiffMerge

What DiffMerge is

DiffMerge is desktop software for comparing and merging files, as well as comparing and synchronizing folders. It can examine directory trees and synchronize folder hierarchies, helping users review changes at both folder and file level. For text documents, it compares revisions of source code, XML, and HTML, and supports ASCII, MBCS, and Unicode. A color-coded side-by-side display marks differences, including changes within lines. Users can set comparison rules to disregard whitespace, comments, line endings, character case, or lines matching regular expressions. An in-place editor supports unlimited undo and automatically compares the documents again after edits. DiffMerge can also generate HTML comparison reports with syntax highlighting for archiving or distribution.

The desktop utility is available for Linux, macOS, and Windows; listed downloads include Windows, macOS, Ubuntu, and Fedora. Its manual gives integration instructions for Git, Mercurial, TortoiseSVN, Microsoft TFS, and Microsoft VSS 2005. The DiffMerge plan costs $30, paid once, and a 30-day evaluation of all functions is available after downloading the setup program. The listed Windows download is version 1.0.8.

Who it suits

DiffMerge suits software developers, web designers, and other professionals who need to inspect or merge text changes and compare directory trees. It may also fit users who want configurable ignore rules, an editable merge view, or HTML reports.

Limits

The 30-day evaluation lasts 30 days after downloading the setup program. The listed DiffMerge plan specifies a Windows download, version 1.0.8.

Getting started

1. Visit https://www.diffmerge.net/.
2. Choose a download for Windows, macOS, Ubuntu, or Fedora.
3. Download the setup program to begin the 30-day evaluation.
4. Purchase the DiffMerge plan for $30, paid once if you want the listed paid plan.

Verdict

Choose DiffMerge if you need file merging alongside folder comparison and synchronization, with configurable change filtering and report creation. Look elsewhere if you need a free plan or a platform-specific listed plan beyond the Windows download.