Bivonio

JSON minifier

Validate JSON and remove formatting whitespace.

Your files and text are processed on your device.

How to use this tool and limits

Paste valid JSON. The result is serialized without indentation or line breaks; spaces inside strings are preserved.

Guides
How to validate, format and minify JSON

Recognize syntax errors and understand what the browser’s JSON parser preserves.

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Encode text for a URL or decode percent-encoded characters.

Frequently asked questions

Is this file compression?

No. It removes unnecessary formatting. The browser parser retains the last duplicate key and uses JavaScript number precision.