Kaleidoscope | Best Apps and Games 23 February,2019


Spot the differences. Merge in seconds.

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

Who says powerful developer tools can’t be beautiful too?

Praise for Kaleidoscope
"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

It’s Part of Your Workflow
– Subversion, Git, Mercurial, Bazaar, and Perforce support
– Integrates 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-merges 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 OS X Lion & Mountain Lion


– Beautiful, modern UI 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

"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

New Feature: Added support for ignoring whitespace (leading, trailing and line ending) in text comparisons.
New Feature: Added an indicator to display remaining unresolved conflicts in a merge document.

Text Scope
– Added dropdown menus on either side of Choose Left/Choose Right buttons to make “Choose Both” options more discoverable.
– Added better tooltips for the “Copy to” buttons when in Unified view.
– Fixed various issues with Dark Theme which made text difficult to read.

canberra show

– Fixed issue where selecting different text scope views on one window could affect copy right/left buttons on other windows.
– Fixed issue where holding option to modify the behavior of copy right/left buttons on one window could affect other windows.
– Fixed issue that could prevent Kaleidoscope from picking up changes made to a document open in more than one window.
– Fixed issue that could prevent Kaleidoscope from picking up changes made to documents externally, especially on the MAS build.

Folder Scope
– Fixed issue where sometimes Folder Scope copies would not show up correctly after the copy had taken place.
– Fixed issue where Folder Scope would not pick up external additions of empty files or directories.

– Fixed issue that caused git integration to fail on 10.9 Mavericks.
– Fixed issue where ksdiff was sometimes not able to connect to Kaleidoscope after reboots with window restoration enabled.
– Fixed issue that where Kaleidoscope would not allow quitting when choosing “Review Conflicts” on a modified document.

General Improvements
– Updated Automator actions to categorize correctly in Automator.
– Added support for copy/paste shortcuts in the crash reporter window.
– Kaleidoscope now avoids saving files without changes.
– Kaleidoscope will now disallow edits to files that can be read but not written to (e.g. docx files).
– Kaleidoscope now better remembers size and position of your windows.
– Fixed issue that stopped the comparison windows from minimizing when double clicking their title bar.
– Fixed issue where the path bar area could fail to update correctly when switching tabs.
– Fixed issue where clicking the dock icon would not restore minimized documents.
– Fixed issue where dragging a group of files that were already open in Kaleidoscope could cause issues resulting in not all new files being added.
– Fixed issue that made it possible for the comparison window to grow vertically offscreen on 10.9 leaving you with a window you could not reposition afterwards.
– Fixed issue that made it impossible to bring up the open dialog by clicking on an empty tab when fullscreen in 10.9.
– Fixed issue where sometimes full-screen windows would not be full-screen.
– Fixed small visual issues with the Ignored Files dialog window.
– Fixed documentation issues with ksdiff help.
– Improved Help Documentation.
– Various performance and stability fixes.

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