Kaleidoscope
Kaleidoscope is a file comparison and merge tool for macOS used by developers, designers, and technical users. It visually highlights differences in text files (source code, HTML, plain text), image files (JPEG, PNG, PSD, TIFF), and entire folders. It integrates with version control systems including Git, Mercurial, SVN, and Bazaar, and includes the ksdiff command-line tool for scripting. The app supports multiple comparison layouts and has become a standard tool in developer workflows for code review and asset management.
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1 suggestionKaleidoscope has shipped a native Apple Silicon build since version 3.5 (released in late 2022), so your copy is likely already running natively if you are on version 4 or later. To verify and ensure you have the latest release, visit kaleidoscope.app and download the current installer — the site automatically serves the native Apple Silicon build on M-series Macs. Alternatively, if Kaleidoscope is installed via the Mac App Store, simply open the App Store and check for updates. The latest version includes performance improvements and new comparison features. Once updated to a native build, you will notice faster comparison operations and improved battery efficiency on Apple Silicon Macs.
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