JSON Brace: Viewer & Formatter

Pretty-print & explore data

Free · In‑App Purchases

JSON Brace turns raw JSON into a clean, readable tree – in a native app on your iPhone, iPad, and Mac, and right inside Safari. APIs, logs, configs, exports – JSON is everywhere, but reading it raw is painful. JSON Brace formats it instantly into a collapsible tree you can explore, search, and copy from. THE APP • Open any JSON and explore it as an interactive tree • Collapse and expand nodes to focus on what matters • Fast search with match highlighting • Copy values or the whole document in one tap • RAW mode when you need the original text • Quick Look on the Mac: press Space on a JSON file in Finder for an instant preview in your theme THE SAFARI EXTENSION • Automatically detects and formats JSON on web pages • Perfect for checking API responses right in the browser • Same viewer, same themes, same shortcuts – no extra setup MADE TO LOOK GOOD • 19 carefully tuned themes: Solarized, Dracula, Nord, GitHub, Monokai, One Dark, Tokyo Night, Gruvbox, Catppuccin, Rosé Pine, and more • Light, dark, and system appearance • The whole app follows your theme, not just the tree BUILT FOR EVERYONE • Full VoiceOver support • Complete keyboard navigation • Adjustable text size and Dynamic Type • High Contrast theme and type markers that don't rely on color alone FREE AND PRO The core viewer is free: formatting, tree navigation, search, and copying. JSON Brace Pro unlocks the full theme collection, inline previews, expansion depth control, saving to a file, and copying any subtree, key, or path. Pro is a one-time purchase – no subscription – and supports Family Sharing. PRIVATE BY DESIGN Everything happens on your device. No servers, no accounts, no tracking, no analytics. Your data never leaves your iPhone, iPad, or Mac. Download JSON Brace and never squint at raw JSON again.

Ratings & Reviews

  • This app’s overall rating was recently reset.

- New scroll bars: the vertical bar is always visible and never hidden behind the sticky ancestors panel, a horizontal one appears for wide documents. - Files open without a white flash. - Large files no longer freeze the app while opening. - Fixed the sticky panel after Collapse All, wrapping of deep lines when narrowing the window.

Version 3.1.0

The developer, Sergei Rebrov, 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
    Sergei Rebrov
    Size
    1.8 MB
    Category
    Developer Tools
    Compatibility
    Requires iOS 16.6 or later.
    • iPhone
      Requires iOS 16.6 or later.
    • iPad
      Requires iPadOS 16.6 or later.
    • Mac
      Requires macOS 13.5 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Sergei Rebrov
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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