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Best JSON Formatter Alternatives ranked by AI · updated May 2025

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A tool to format, validate, and convert JSON data.

Price: Free

Top 6 JSON Formatter alternatives

1

JSON Editor Online

Jos de Jong

JSON Editor Online is a browser-based tool for developers who need to view, edit, format, validate, and transform JSON data. It combines...

Pros

  • Combines code, tree, and table views in one workspace
  • Supports large JSON documents better than many basic formatter tools
  • Includes validation, formatting, querying, and transformation features

Cons

  • Cloud features require more trust than fully local tools
  • More complex than simple JSON validators
  • Some collaboration and storage capabilities may require a paid plan

Freemium

Alternatives to JSON Editor Online → Visit site
6

ExtendsClass JSON Formatter

ExtendsClass

ExtendsClass JSON Formatter is a browser-based tool for developers who need to format, validate, minify, and inspect JSON data. It provides a...

Pros

  • Combines formatting, validation, and minification in one browser tool
  • Tree-style inspection is useful for navigating nested JSON
  • Runs without installation or account registration

Cons

  • Fewer editing and transformation features than JSON Editor Online
  • Less specialized error guidance than JSONLint
  • Browser-only workflow is less convenient for repeated local use

Free

Alternatives to ExtendsClass JSON... → Visit site

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