Web & Developer · Free tool
BrowserJSON Formatter
Paste JSON to pretty-print, validate or minify it. Errors point to the exact line and column, and nothing leaves your browser.
Runs 100% in your browser — nothing is uploaded.
How it works
Three steps, zero fuss.
- 01
Add your input
Paste or type your content into the tool.
- 02
Adjust
Fine-tune the settings and watch the result update instantly.
- 03
Copy or download
Copy the result or download the file — free, with no watermark.
FAQ
Is my JSON sent to a server?
No. Everything runs locally in your browser.
Is the JSON Formatter really free?
Yes. No sign-up, no watermark and no hidden limits for normal use.
Do my files leave my device?
No. This tool runs entirely in your browser, so your text and files never reach our servers.
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Let’s talk
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