prettyJSON for Safari

An in browser JSON formatter.

Only for Mac

Free

Mac

A free, private, open source JSON Pretty Printer for Safari! No tracking, no in-app purchases, no nonsense. Pretty format JSON data in Safari with this extension and a simple toggle button. No data is sent back to a server (it's secure) and no CSS or modifications added to the page until the toggle is turned on. Plus, 100% free and open-source. Dark mode is supported automatically. This plugin works with JSON from a server (no local files) and served with the correct MIME type and content-security. File urls will not work with this plugin for security reasons. Visit the support URL for more...thanks!

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Better readability in dark mode.

Version 2.2

The developer, David A. Shamma, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • David Shamma
    Size
    • 2.6 MB
    Category
    • Developer Tools
    Compatibility
    Requires macOS 11.0 or later.
    • Mac
      Requires macOS 11.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2025 David A. Shamma via GNU GPL 3.0
  • Privacy Policy

    • More by David A. Shamma