Free browser utility
JSON Formatter Online Free
Paste JSON, format it for readability, validate syntax and create a compact minified version.
Format JSONValidate JSONMinify JSON
FREE browser utility
JSON Formatter
Format, validate and minify JSON locally in your browser.
How to use this tool
- 1
Paste JSON.
- 2
Format or minify it.
- 3
Copy the result.
Is my text uploaded to a server?
No. These utility tools run locally in your browser and do not upload or store the text you enter.
Is this tool free?
Yes. The browser utility tools on Cobalt Tools are free to use.
Does this repair broken JSON?
No. It validates and formats valid JSON, and shows an error when the input cannot be parsed.
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