Is my JSON sent to a server?
No. All processing is done locally in your browser for maximum privacy.
Professional Grade
JSON Formatter & Validator
A high-performance editor that cleans, beautifies, and validates JSON strings with instant feedback.
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Quick Guide
Master this tool in seconds
Paste or type your JSON into the editor.
Errors are highlighted instantly as you type.
Click "Beautify" to format, or "Minify" to compress.
Copy the result or download as a .json file.
Common Questions
Everything you need to know
Does it support large files?
Yes, but performance may depend on your device's memory.