Runs locally in your browser
JSON Formatter & Minifier
Validate, format, or minify JSON entirely in your browser.
Paste JSON to detect syntax errors, pretty-print it for reading, or minify it for compact transport.
JSON Formatter & Minifier
Ready.
How to use
Paste JSON, select Format or Minify, review the result, and copy only if the data is safe to share.
Privacy
JSON text stays in your browser and is not sent to our server.
Limitations
Avoid pasting credentials, private keys, access tokens, or other secrets into any web page, even when processing is local.
Example
{"plan":"pro","seats":3,"active":true}
Related tools
QR Code Generator
Create a QR code from text or a URL without sending the value to a remote API.
Image Resizer
Resize JPG, PNG, or WebP images locally in your browser.
Image Compressor
Reduce image file size with client-side JPEG or WebP compression.