Best File Diff Tool For Mac

  1. Free File Diff Tool
  2. Best File Diff Tool For Macs
  3. Best File Diff Tool For Macbook Pro

This tool allows loading the Base64 data URL, which loads base64 encoded text and decodes to human readable text. Click on the URL button, Enter URL and Submit. Users can also convert base64 data File to Plain text by uploading the file. Base64 Decoder Online works well on Windows, MAC, Linux, Chrome, Firefox, Edge, and Safari. Compare Folders is a powerful utility designed to compare two folders and tell you which files and folders are the same, which are new, and which have been modified. This saves you the effort of.

Best cleaning and antimalware functionality in one tool: Link: 2: Disk Doctor: Quick scan and deep cleaning of all kinds of junk: Link: 3: Gemini 2: Finds duplicate and similar files everywhere on your Mac, including Photos, iTunes, and external drives. Diffchecker is a diff tool to compare text differences between two text files. Enter the contents of two files and click Find Difference Try our desktop app Offline mode, advanced features and more.

File and Folder Comparison and Synchronization.

Kdiff3, Meld, and Beyond Compare are probably your best bets out of the 18 options considered.

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DeltaWalker is the most important utility I have installed on my Mac!

Steven Yong, Apple Expert, Apple

Wide Audience

Tens of thousands of users—from savvy individuals to software professionals demanding the very best of their tools, from one-man shops to Fortune 50 companies—trust DeltaWalker with their file and folder comparison needs. Daily.



Mac OS X 10.15 (Catalina), Mac OS X 10.14 (Mojave), 10.13 (High Sierra), 10.12 (Sierra), 10.11 (El Capitan), 10.10 (Yosemite), 10.9 (Mavericks), 10.8 (Mountain Lion), 10.7 (Lion)

DeltaWalker 2.5.6 is not compatible with Big Sur. We expect to have a Big Sur compatible build shortly.

Folder Comparison:

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Adaptable in its core and to your processor cores,
DW takes full advantage of your HW

TBs of data, million+ items

Local & Remote

File Comparison:

Clarity, Precision
2 & 3-way
Your way

In-place editing
Click & merge
Syntax coloring
Automatic 3-way merge

Office, PDF

Local & Remote

Image Comparison:

Worth a Thousand Words

Functional & beautiful, intuitive & versatile

Visualization & pix-by-pix comparison, 2 & 3-way

Zooming & panning


Local & Remote

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Being part of its developer toolset, Apple's own merge tool comes at no additional costs. It might not be the most elegant tool, but it's definitely a solid one that does the job of comparing & merging text.

Beyond Compare

Originally a product for Microsoft Windows, the Beyond Compare team has contributed a fine diff tool to the Mac platform. Like Araxis Merge and DeltaWalker, it goes beyond (pun intended) comparing simple text and also allows diffing Word and PDF contents. In its 'Pro Version', it also supports merging.

Araxis Merge

One of the few diff tools that works with more than just text and image files, Araxis Merge lets you also compare office documents (like MS Word, Excel, Powerpoint, or ODF). It comes in standard and professional editions, and for people working on both macOS and Windows, it's great to know that a single license is valid for both platforms.

NEW: Image Diffing in Tower! Our popular Git client Tower now supports Image Diffing for a variety of formats (including PNG, JPG, GIF, BMP, TIFF, JPEG2000, and HEIC). In both the Working Copy and various History / Changeset views, you can now see the actual images - and how they were changed! Try it yourself - for free!


Just like Araxis, the DeltaWalker app also lets you compare office files. However, it goes one step further by letting you compare file archives like ZIP, JAR, and TAR files. Also, if you're regularly performing comparisons on a folder basis, DeltaWalker shines with a great performance in this area. DeltaWalker supports macOS, Windows and Linux.



Although it has changed hands (i.e. owners) multiple times, Kaleidoscope is still one of the best diff & merge tools for the Mac. Its beautiful user interface and great image diffing capabilities are what set it apart. Kaleidoscope is also available for the iPad.

Free Alternatives

In case you're looking for a free alternative to the standard FileMerge app, you should also have a look at P4Merge and DiffMerge.
Both can't compare in terms of features and user interface with their commercial competitors - but make for a valid alternative on macOS, Windows, and Linux.


Another aspect to watch out for is integrations: before choosing your favorite tool, you should make sure that it plays nicely with the rest of your tool chain. I can already confirm that all of the mentioned tools work seamlessly at least with Tower, our own Git client.

If you don't need the power of a dedicated Diff tool application, the integrated diff views in Tower might be absolutely sufficient for you:

In case you don't know Tower: it's the Git desktop client for Mac and Windows that helps thousands of developers and designers to easily & productively work with the Git version control system. Try it 30 days for free!


Free File Diff Tool

Diff & merge apps are amongst the most underestimated tools. But a good one can be really helpful in a lot of situations. Try one of the above and see for yourself!

Best File Diff Tool For Macs

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Best File Diff Tool For Macbook Pro

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