Guiffy Software
< The Advanced Cross-Platform Diff/Merge >

Welcome to Guiffy Software
At Guiffy our focus is Advanced Cross-Platform Diff/Merge software. Our product is a visual diff tool, merge tool, and folder compare tool that makes comparing and merging sources easy and reliable. Guiffy is used around the world by thousands of professional organizations on a wide variety of platforms (Including: Windows, MacOS X, Linux, and Unix).
   Free 21-day evaluations...
free diff tool, merge tool, folder compare download
Guiffy News: September 30, 2015: Guiffy 11.2 tested/supported on MacOS X 10.11 (El Capitan).

July 29, 2015: Guiffy 11.2 tested/supported on Windows 10.

July 7, 2015: Guiffy 11.2 released . . .
  • Patch Preview, Revised % rule for inline diffs highlighting, AWT Native FileDialogs on MacOS X
March 3, 2015: Guiffy 11.1 released . . .
  • New Unified Diff patch tool, New 64-bit Windows shell extension, Improved MouseWheel support
November 3, 2014: Guiffy 11.0 released . . .
  • New Toolbars, "Quick" Folder Compare defaults, MacOS X 10.10 (Yosemite) tested/supported
July 2, 2014: Guiffy 10.6 released . . .
  • Performance Improvements, File Compares > 2 GB, Folder Compare reports CLI/API

Our 3-way Merge Tool - SureMerge™
diff/merge tool
(To view the screenshot)
Clickon: Windows, Linux, or MacOSX
  • Guiffy's Trustworthy 3-way merge tool, called SureMerge™, surpasses all other merge tools with its intelligent hybrid algorithms and ease-of-use. See our SureMerge White Paper which includes test kit files for evaluating 3-way merge tools. For more Merge Tool info...

  • Guiffy's visual diff tool can be used to compare source files of any type with builtin support of Unicode (UTF8 & UTF16), MBCS, SJIS, and over 150 File Encoding and character set formats.
    diff/merge Unicode-16
    (Clickon thumbnail to view the screenshot)

    For more Diff Tool info...
  • Guiffy implements a blend of 3 diff algorithms to provide the best visual file compare results (including tuneable in-line diffs highlighting) and trusted 3-way auto merge capabilities.

  • Guiffy also provides folder compare and file tree synchronization capabilities. Expand a subfolder... Double-click on a file in Guiffy's Directory Compare and a File Compare view is quickly generated in another window.
    launch file compares from folder compares
    (Clickon thumbnail to view the screenshot)

    For more Folder Compare info...
  • Guiffy's Image Diff tool includes: Command Line Interface, 3 Filter options, Overlay option, Threshold control, Image File Info. panel, Image resizing, Compare Metrics and Save Diff view.

    The Image Diff tool is integrated into the Guiffy's file/folder compare and is also available as a free stand alone application.
    For more Image Diff tool info... diff tool Syntax
    (Clickon thumbnail to view the screenshot)

  • File Compare reports saved as HTML... reflect all of Guiffy's Style (Color and Font) choices and the diff tool results driven by Ignore and Show options.
    compare reports saved as HTML
    (Clickon thumbnail to view the screenshot)
Plus, Guiffy fits into your environment...
Guiffy includes: Desktop integrations, Command Line Interfaces, CM integrations, IDE integrations, and an API library.

For further information, see these topics in Guiffy's Help.

And, Guiffy consistently receives the very highest review ratings...
Jolt Award
For further information, see our Tucows, Dr. Dobbs, and CNET reviews.

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