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JSON Formatter

ExtensionDeveloper Tools
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Overview

Auto-detect and beautify JSON data with syntax highlighting and collapsible tree view

JSON Formatter automatically detects JSON content in your browser and formats it with a beautiful, interactive tree view. Features: - Auto-detect JSON pages and API responses - Syntax highlighting with Catppuccin color theme - Collapsible/expandable tree nodes - Dark and Light theme toggle (persisted) - Line numbers with hover highlighting - JSON path bar - hover to see path, click to copy - URL detection - clickable links in JSON strings - Expand to depth level (L1 / L2 / L3 / All) - One-click copy formatted JSON - Raw/Formatted view toggle - Popup tool for quick JSON formatting - Multilingual support (English / Chinese) Lightweight, fast, no external requests, no data collection. Pure client-side processing.

Details

  • Version
    1.1.0
  • Updated
    May 5, 2026
  • Offered by
    BlusKris
  • Size
    12.24KiB
  • Languages
    2 languages
  • Developer
    Email
    cwwx1818@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

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