18.2
Diffchecker compares text, code, and data, either in a browser or with its desktop app.
Free planiOSWebAPI
Best Diff and Merge Tools in 2026
Reviewing changes or bringing edits together calls for tools that make differences clear and merging manageable. Diffchecker, Diffract, and SourceGear DiffMerge are among the options to compare. Folder comparison can be important when you work across directories, while merge scope and three-way merge help describe how tools handle competing changes. For development work, consider Git integration and syntax…
27.3
Free planOpen sourceWebLinuxmacOS
37.3
Code Compare is a file and folder comparison and merge tool available as a standalone app and a Visual Studio extension.
Free planAPIExtensionWindows
- 4
KDiff3
KDiff3 compares and merges files and folders on Linux, macOS, and Windows.
Free planOpen sourceLinuxmacOSWindows7.3Free plan - 5
UltraCompare
LinuxmacOSWindows7.1From $99.95 a year - 6
Diffract
Diffract is a desktop tool for comparing code, folders, documents and binary files side by side on Linux, macOS and Windows.
Free planLinuxmacOSWindows6.8$34 one-time - 7
Compare Suite
Compare Suite is a Windows file comparison tool for office professionals, software developers, and webmasters.
Free planWindows6.6$70 one-time - 8
Beyond Compare
Beyond Compare helps users inspect differences and merge changes across folders, text files, images, and tables.
LinuxmacOSWindows6.4$35 one-time - 9
DeltaWalker
DeltaWalker is a desktop application for comparing, synchronizing, merging, automating, and analyzing files and folders on Windows, macOS, and Linux.
LinuxmacOSWindows6.4$39.99 one-time - 10
Altova DiffDog
Altova DiffDog is a Windows desktop tool for comparing and merging files, directories, and database schemas or content.
Windows6.3$189 one-time - 11
Araxis Merge
Araxis Merge is a Windows and macOS application for comparing and merging files, plus synchronizing directory trees.
macOSWindows6.3$129 one-time - 12
delta
Delta is a free, open-source pager for Git and related command-line output, including diffs, grep, ripgrep JSON and blame.
Free planLinuxmacOSWindows6.3Free plan - 13
DiffMerge
DiffMerge is a desktop utility for comparing and merging files, as well as comparing and synchronizing folders.
LinuxmacOSWindows6.3$30 one-time - 14
Guiffy
Guiffy is a visual tool for comparing and merging source files and comparing folders, available for Linux, macOS, and Windows.
LinuxmacOSWindows6.3$24 one-time - 15
Kaleidoscope
macOS6.3From $8 a year - 16
Meld
Meld is a free visual diff and merge tool for comparing files, folders, and version-controlled projects.
Free planLinuxWindows6.2Free plan - 17
ExamDiff Pro
Windows6.1$37.99 one-time - 18
Mergely
Mergely is a browser-based diff and merge editor, as well as a JavaScript library for comparing and merging text.
Free planWebAPISelf-hosted6.1Free plan - 19
SourceGear DiffMerge
SourceGear DiffMerge is a free desktop tool for visually comparing and merging files and folders on Linux, macOS, and Windows.
Free planLinuxmacOSWindows6.1Free plan - 20
Difftastic
Difftastic is a free command-line diff tool that compares files by syntax rather than line matching alone.
Free planLinuxmacOSWindows6.0Free plan - 215.9Free plan
- 22
Diffinity
Diffinity is a free Windows utility for comparing and merging text files, with folder comparison for reviewing differences across directories.
Free planWindows5.9Free plan - 23
icdiff
icdiff is a free, open-source command-line tool that shows differences between two files in a side-by-side terminal view.
Free planLinuxmacOS5.9Free plan - 24
Meld
Meld is a free, open-source desktop application for comparing files, directories and version-controlled projects.
Free planLinuxWindows5.9Free plan - 25
Kompare
Kompare is a free Linux graphical application for viewing and merging differences between source files.
Free planLinux5.8Free plan