QuickJSON
QuickJSON is a QuickLook generator extension for macOS that adds JSON syntax highlighting and formatted preview support to the macOS QuickLook system. When you select a JSON file in Finder and press Space to preview it, QuickJSON intercepts that request and displays the file with proper indentation, color-coded syntax highlighting, and collapsible sections instead of the default plain-text view. This is useful for developers, data analysts, and anyone who regularly inspects JSON configuration files, API responses, or data exports from the command line or Finder without needing to open a full text editor.
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1 suggestionQuickJSON is a QuickLook generator extension, not a standalone app, so it cannot be updated independently through the App Store or a vendor download page. The extension is typically installed as part of a larger installer or build tool and is updated by reinstalling or updating its parent product. Based on the bundle ID, it appears this QuickLook generator was developed as an open-source project on GitHub. To check whether a native Apple Silicon build is available, visit the GitHub repository (search for "quickjson" on GitHub) and look for a recent release that mentions Apple Silicon or arm64 support. If the project appears inactive or has not been updated since before 2022, it may not have a native build and will stop working when macOS 28 removes Rosetta 2 in September 2028. If you installed this via a larger tool (a JSON editor, IDE, or development utility), updating that parent application should update the QuickJSON extension as well. If you installed it manually, consider reaching out to the maintainer to ask about Apple Silicon support, or explore modern JSON preview tools that ship native extensions by default.
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