JSON Knife — Format, Validate & Diff JSON

Overview

Format, beautify, validate, and diff JSON instantly. Right-click any text to format JSON. Free, fast, no tracking.

JSON Knife is a fast, free developer tool for formatting, validating, and working with JSON — right from your browser toolbar.

Version
1.0.0
Updated
February 19, 2026
Flag concern
Size
12.23KiB
Languages
English
Developer
Website
Email
shane@shaneburrell.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.

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.

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

For help with questions, suggestions, or problems, visit the developer's support site

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