JSON Tools

Format, validate, minify, compare and explore JSON — instantly, in your browser.

No data leaves your browser
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JSON Validator
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Minify JSON
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Compare two JSON objects
JSON A
JSON B
Tree Explorer
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Mode
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Order
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Mode
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Frequently Asked Questions

Is the JSON formatter free?

Yes, completely free with no account, login, or signup required. All features are available immediately.

Is my JSON data safe?

All processing happens entirely in your browser. Your data never leaves your device and is never sent to any server.

What JSON tools are included?

Brace includes a JSON formatter/beautifier, validator, minifier, diff and compare tool, tree explorer, and color syntax highlighter.

Does it handle large JSON files?

Yes. Brace is optimized for files up to several MB using async processing and smart display truncation to keep the UI responsive.

Can I share JSON via a URL?

Yes. Use the Share button in the Format tab to generate a shareable URL with your JSON encoded in the query string.