JSON Formatter Instantly

Clean, secure, and professional JSON beautifier by tool-util.com. All processing is done locally in your browser—your data never leaves your device.

Input Mode

upload

Drag & drop files here

Supports .json, .txt, or simply paste text

How it works

data_object

Paste your raw JSON into the editor or upload a file. Our tool is Secure & Private; your data remains entirely in your browser.

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Choose your indentation or minify settings and hit format. Expect High Performance handling of large objects up to several MBs instantly.

speedInstant Results

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Get Standard Compliant output ready for copy-pasting into your IDE or exporting to a .json file.

verifiedValid JSON

How do I format a JSON string?expand_more

Is my data shared with tool-util.com?expand_more

What is the difference between Minify and Beautify?expand_more

Is there a file size limit?expand_more

What is JSON?expand_more

How do I validate my JSON?expand_more

Can I convert JSON to other formats?expand_more

What are common JSON errors?expand_more

Can I use comments in JSON?expand_more

How do I handle large JSON files?expand_more

What's the difference between JSON and JavaScript objects?expand_more

Can I pretty-print JSON in programming languages?expand_more

How do I escape special characters in JSON?expand_more

What are JSON Schema and JSON-LD?expand_more

Why use JSON instead of XML?expand_more