JSON Formatter
Format, validate and beautify JSON data with syntax highlighting. Also supports minification and error detection.
const tool = {
name: 'JSON Formatter',
type: 'browser-based',
cost: free,
privacy: true,
}
name: 'JSON Formatter',
type: 'browser-based',
cost: free,
privacy: true,
}
How to Use JSON Formatter
01
Paste your raw JSON into the editor
02
Click Format to beautify with indentation
03
Copy the formatted output or fix any errors shown
Why Use This Tool
100% Private
Your data never leaves your browser. Nothing is uploaded to any server.
Instant Results
Modern browser APIs deliver results in milliseconds with no waiting.
Free Forever
No subscriptions, no credits, no paywalls — ever.
Frequently Asked Questions
Does it validate JSON?
Yes — errors are highlighted with line numbers so you can fix them quickly.
Can it minify JSON too?
Yes — toggle between beautified and minified output.
Is there a size limit?
Up to 1 MB of JSON data.
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