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JSON Formatter

callumlocke.com
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4.5(

1.9K ratings

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ExtensionDeveloper Tools2,000,000 users
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Overview

Makes JSON easy to read and explore

Automatically prettifies any JSON response opened in a browser tab. FEATURES: šŸŽļø **Fast**, even on very long JSON pages šŸŒ— Dark mode support šŸŽØ Syntax highlighting šŸ“Ž Code folding and indent guides šŸ”— Clickable URLs šŸ”Œ Raw/Parsed toggler Pro tips: šŸŖ„ Hold down Ctrl (or āŒ˜ on Mac) when clicking to fold/unfold all adjacent siblings šŸŖ„ Open the Dev Tools console and type `json` if you want to explore the parsed JSON

Details

  • Version
    0.9.4
  • Updated
    February 19, 2026
  • Size
    37.42KiB
  • Languages
    English
  • Developer
    Callum Locke
    36 Addington Grove London SE26 4JX GB
    Website
    Email
    callum.locke@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

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The developer has disclosed that it will not collect or use your data.

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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