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json-formatter-validator

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A lightweight, browser-based JSON Formatter, Validator, and Editor built using Vanilla JavaScript, HTML, and CSS. This tool helps developers quickly validate JSON, beautify it with custom indentation, edit values, and copy formatted output — without relying on external libraries.

  • Updated Dec 29, 2025
  • CSS

Free online JSON formatter, beautifier, validator, minifier, tree viewer, diff checker, and JSON path finder. Fast, private, browser-based, and no signup required.

  • Updated Sep 10, 2026

Free online JSON formatter, beautifier, validator, and minifier for developers and students. Convert JSON to CSV, XML, and YAML, sort keys, escape or unescape data, and copy or download results instantly. Save recent JSON locally and share data through temporary links. Simplify JSON formatting, validation, and conversion with easy-to-use tools.

  • Updated Oct 11, 2026
  • HTML

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