What does a JSON formatter do?

It takes raw or minified JSON and formats it with proper indentation for readability. It also validates that the JSON syntax is correct.

Yes, the tool can both format (prettify) and minify JSON with one click.

Does it validate JSON?

Yes, if your JSON has syntax errors, the tool will show the exact error message.

What indentation options are available?

You can choose 1 space, 2 spaces, or 4 spaces for indentation.

JSON Formatter & Validator

Paste raw JSON and format it with proper indentation, or minify it to a single line. Validates JSON syntax and shows clear error messages for invalid input.

JSON Input

How to Use JSON Formatter & Validator

Open the JSON Formatter tool
Paste your JSON into the input area
Click Format to prettify or Minify to compress
Choose your preferred indentation (2 or 4 spaces)
Copy the formatted output

Frequently Asked Questions

What does a JSON formatter do?: It takes raw or minified JSON and formats it with proper indentation for readability. It also validates that the JSON syntax is correct.
Can I minify JSON?: Yes, the tool can both format (prettify) and minify JSON with one click.
Does it validate JSON?: Yes, if your JSON has syntax errors, the tool will show the exact error message.
What indentation options are available?: You can choose 1 space, 2 spaces, or 4 spaces for indentation.

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About JSON Formatter & Validator

Format, validate, and minify JSON online. Free JSON formatter with syntax validation and customizable indentation. This tool runs entirely in your browser — no data is sent to any server. Your content stays private and secure. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.