DeltaWalker vs SourceGear DiffMerge

DeltaWalker is desktop software for comparing, synchronizing, merging, automating, and analyzing files and folders on Linux, macOS, and Windows. Text comparison displays changes inline and supports editing, regular-expression find and replace, and syntax highlighting for close to 50 programming languages. Image comparison examines attributes and pixels; version 3 adds zoom, alignment, and inspection tools. Folder comparison identifies differences between hierarchies and can synchronize by copying, moving, or deleting files. File comparisons support read/write access over (S)FTP(S) and WebDAV, and read-only access over HTTP(S); folder comparisons support read/write access over (S)FTP(S) and WebDAV. Pro and Oro include three-way comparison and automatic merging of non-conflicting text changes. The maker documents integrations with Git, Mercurial, Bazaar, SVN, SourceTree, and Visual Studio, plus scripting and command-line automation. Standard costs $39.99, paid once for one platform, Pro costs $59.99, paid once for one platform, and Oro costs $89.99, paid once for all platforms. A 30-day trial is listed; there is no free plan.

SourceGear DiffMerge is a free desktop application for visually comparing and merging files and folders on Linux, macOS, and Windows. Its Diff feature displays changes between two files, highlights differences within lines, and supports editing. Merge compares three files and can combine changes automatically when it considers that safe. Folder Diff compares two folders side by side and classifies files as identical, equivalent, different, or present in only one folder. Rulesets and options let users adjust its appearance and behavior, and it can import files in a wide range of character encodings. A command-line interface compares files and can write differences in unified or traditional formats. The manual documents integrations with Git, Mercurial, TortoiseSVN, Microsoft TFS, and Microsoft VSS 2005. Windows Explorer integration adds context-menu actions for selected files or folders. The download page lists version 4.2 builds for Windows, MacOS 10.6+, Ubuntu 12.04+, and Fedora 17+. SourceGear support stated in February 2026 that it was no longer accepting registrations and was moving DiffMerge toward an open-source project.