Developer: Hypergiant

Current Version: 2.3.2

Last Updated: 5 months ago

Download Size: 23.9 MB - Download


Spot the differences. Merge in seconds.

With text merge, three-way merge, folder comparison, and the ability to ignore whitespace-only differences, Kaleidoscope integrates perfectly with the version-control systems you already use.


Easy Workflow Integration

- Subversion, Git, Mercurial, Bazaar, and Perforce support
- Works as a fully functional diff or merge tool
- Supported by a growing list of GUI source control management apps

Two-Way Text Comparison & Merging
- Three powerful display modes
- Super-fast diffing of lines and character-level changes
- Color coding to spot added, deleted, and changed text

Three-Way Merge
- Review code changes and resolve conflicts
- Intelligently auto-merge the right content

File & Folder Comparison
- Ultra-fast algorithm for finding differences in large folders
- Sort and filter down to what matters most
- Drill deeper into folders for more detailed comparisons
- Copy your preferred files across sources

Powerful Image Comparison
- Compare images side by side, stacked, or split
- Spot subtle pixel differences with a high contrast “difference mask”

Optimized for macOS
- Beautiful, modern UI made to feel at home on your Mac
- Full-screen mode for focusing on your content
- Looks gorgeous on retina displays and works wonderfully with high-resolution graphics


"Kaleidoscope epitomizes the concept of “versatile software”: anyone can pick it up and use it, and the app will “scale” according to a user’s needs." - Federico Viticci, MacStories.net

"Kaleidoscope 2 is breeze. I wish I'd had something like Kaleidoscope when I wrote my first novel, and I'll be counting on it when I finally get around to writing the next one." - Rene Ritchie, iMore.com

"It’s beautifully designed, fast and wonderful to use. It’s become an essential part of my toolkit already." - Matthew Panzarino, The Next Web

"The new Kaleidoscope is great, and has awesome and committed people behind it. Devs and designers need this tool." - @SteveStreza

"I just bought Kaleidoscope app! It has already saved my time greatly once (by comparing SQL from clipboard). Thank you!" - @befive_info

"Kaleidoscope 2 is the best merging tool for the Mac, hands down. I finally don't miss BeyondCompare." - @stefankendall


If you have any questions or feedback about Kaleidoscope, please contact us at [email protected]
Learn about important Kaleidoscope updates and announcements by following @kaleidoscopeapp and @hypergiant on Twitter.


Release Notes:

• Fixed bug in integration window


Most Helpful Reviews

Version 2.0
Review by AureaGenus_US

As a LaTeX user, this app really helps my work. - When I revise LaTeX manuscripts, this app shows the difference between the original and revised version in a way that is not only fancy, but also easy to understand. I am really satisfied with this app.

Found helpful by 24 out of 32 people
Version 2.0.2
Review by skoskie

Like dating a super model - It’s beautiful. Says so several times in the description. But it doesn’t actually do a great job of diffing. It will often mark a line as changed, when it should clearly be be marked as one deleted and one inserted line. When this happens, it throws off the rest of the document. There is no way to manually mark a line to prevent this from happening. You just have to get as far as you can in Kaleidoscope, then close it and either finish your work in a different diff app, or manually make the changes in a text editor. For $70, that’s rediculous. I need more than beauty. I need it to work as intended, and the fact that it often doesn’t is really frustrating.

Found helpful by 54 out of 60 people

More Reviews for Current Version

Version 2.3.2
Review by bri.gui

Good, Bad, Ugly… - There's a lot of goodness in this app. It's visually clean, mac-like, and fluid. And yet, it drives me crazy. I haven't had problems with crashes, but writing the developer with basic questions is like tossing stuff into a black hole. And there's just no transparency on support for key features. All my developer tools have long since supported dark mode. But ask the developer when this will be released for Kaleidescope, and… crickets.

Found helpful by 5 out of 5 people
Version 2.3.2
Review by ShutterChick.com

Works when it isn’t constantly crashing - If you’re looking for a $70 application that will show you that there are differences between two folders, this will work. If you actually want to drill down to see what the specific files are causing the differences, you’re out of luck. The app crashes every single time I go into a folder to compare actual files. Every. Single. Time. This would be acceptable for a $10 app, but $70??? It’s ludicrous.

Found helpful by 4 out of 4 people
Version 2.3.2
Review by rysmax

Ideas from developer. - Overall the best app in its class. I have been using it for 3 years. The following improvements are needed: - At the right pane I see the old file name (before renaming) but the file has a new name. - Bad visualization of differences on scroll pane - light gray color on light background - should be colored. - On the left pane which contain list of files all directory titles is so small - add more font size and/or make color darker. - Please, add color manager for differences - my eyes want to cry!

Found helpful by 2 out of 2 people
Version 2.3.2
Review by Geof F. Morris

This has crashed SUPER HARD every time I've used it. - It's not a Quit. It's a Force Quit. This is a waste of my money.

Found helpful by 0 out of 0 people
Version 2.3.2
Review by Geof F. Morris

Endless Force-Quits - Looks great ... absolutely, continually failed for me.

Found helpful by 0 out of 0 people