'Kaleidoscope 2' Lets Users Quickly Spot Differences in Code, Text and Images - MacRumors
Skip to Content

'Kaleidoscope 2' Lets Users Quickly Spot Differences in Code, Text and Images

by

Black Pixel has announced the release of its first major in-house app, Kaleidoscope 2, an app that helps coders, writers and others to compare the differences in folders, images, text, and more.

NewImage
The Next Web's Matthew Panzarino has a lengthy interview with the team behind the app, including former Apple employee Michael Jurewitz, who left Apple for the company earlier this year. Panzarino describes the app thusly:

Kaleidoscope 2 is a lovely comparison app that allows you to take two or more files, folders or images and compare them to one another. The applications are broad, with benefits that swing from developers on one end to those simply looking to compare two images side-by-side. It has full integration with Git, Subversion, Mercurial, and Bazaar. The app can be used as the default conflict resolver for code with its command line integration or simply to check the changed passages in a collaborative word document. It’s beautifully designed, fast and wonderful to use. It’s become an essential part of my toolkit already.

Black Pixel acquired Kaleidoscope and Versions last year, as well as the popular RSS reader NetNewsWire. Version 2 of Kaleidoscope is the first major bit of software that Black Pixel has put its own name on -- previously, the company focused on developing apps for outside clients.

Kaleidoscope 2 is currently available as a public beta with a 15-day trial. Users can purchase it during the beta period for $34.99, half off the final retail price of $70.

Top Rated Comments

ELMI0001 Avatar
174 months ago
Was hoping this was related to Kaleidoscope theme switcher from OS 9 days.
Score: 3 Votes (Like | Disagree)
174 months ago
Was hoping this was related to Kaleidoscope theme switcher from OS 9 days.

Yeah, it immediately came to my mind also) Those were the days )))
http://kaleidoscope.net/schemes/schemespotlight.shtml (http://kaleidoscope.net/schemes/schemespotlight.shtml)
Score: 2 Votes (Like | Disagree)
Glassed Silver Avatar
174 months ago
kdiff3 hands down, people.
Don't kid yourselves and go for that instead.

I wish there were ready binaries available for the latest build though, because my attempts at compiling are unsuccessful. meh.

Glassed Silver:mac
Score: 1 Votes (Like | Disagree)
InLikeALion Avatar
174 months ago
I work as a web developer and we have guys who run Windows in virtual machines 24/7 simply to use Beyond Compare for real compare/merge. NOTHING on OS X compares to the necessary and comprehensive features it has.

If K2 covers our needs, shelling out $70 a license won't be a problem. After all, pros pay $1200+ for Creative Suite for each member of their designer & developer teams. People doing this for real need pro software and know they have to pay for it.
Score: 1 Votes (Like | Disagree)
174 months ago
this CompareMerge app also can do compare and merge with only 9$.

https://itunes.apple.com/us/app/id571389471?mt=12 (https://itunes.apple.com/us/app/id571389471?mt=12)
Score: 1 Votes (Like | Disagree)
Poisednoise Avatar
174 months ago
Yeah, it immediately came to my mind also) Those were the days )))
http://kaleidoscope.net/schemes/schemespotlight.shtml (http://kaleidoscope.net/schemes/schemespotlight.shtml)

Good old Arlo Rose. The hours I spent on my theme.....
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Apple Business hero

Apple Unveils 'Apple Business' All-in-One Platform

Tuesday March 24, 2026 8:53 am PDT by
Apple today announced Apple Business, a new all-in-one platform that unifies device management, productivity tools, and customer outreach features. The service is designed to be a consolidated replacement for several of Apple's existing business-focused offerings, including Apple Business Essentials, Apple Business Manager, and Apple Business Connect. It provides organizations with a single...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday March 24, 2026 12:31 pm PDT by
Apple today released new firmware for the AirPods Pro 2, AirPods Pro 3, and the AirPods 4. The firmware has a version number of 8B39, up from 8B34 on the AirPods Pro 3, 8B28 on the AirPods Pro 2, and 8B21 on the AirPods 4. There is no word on what's included in the firmware, but Apple has a support document with limited notes. Most updates are limited to bug fixes and performance...