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JSON Formatter & Validator

Format, beautify, validate, and minify JSON data with instant syntax error highlighting and clean tree view.

100% In-Browser Privacy
Instant Processing
No Upload to Servers
Indent:
document.json
0 lines•0 chars•UTF-8

How to Use JSON Formatter

Fast, effortless, and private in three simple steps

1

Paste Raw JSON

Paste unformatted or minified JSON text into the editor, or click "Load Sample".

2

Format or Minify

Click "Beautify" to format with clean indentations, or "Minify" to compress into one line.

3

Copy or Download

Copy the valid JSON with one click or save as a .json file.

Why Choose Our JSON Formatter?

Built for creators, developers, and daily productivity

Syntax Error Detection

Pinpoints missing commas, brackets, and syntax errors with clear line numbers.

2-Space, 4-Space & Tab Indent

Choose your desired indentation style to match your codebase.

Minify & Compact

Remove all unnecessary whitespace for production payloads with one click.

100% In-Browser Privacy

Sensitive API responses, payloads, and tokens are never posted to an external server.

Frequently Asked Questions

Everything you need to know about JSON Formatter

Yes! Unlike many online tools that send your JSON to a backend server, our tool validates and formats 100% locally in your browser.

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