INPUT
FORMATTED OUTPUT
Format, validate, and beautify your JSON data instantly with our 100% client-side online JSON formatter — no data leaves your browser. Quickly spot errors and format your payload perfectly.
JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write, and easy for machines to parse and generate. JSON is built on two structures: a collection of name/value pairs (like an object) and an ordered list of values (like an array).
As a completely client-side json formatter, formatting, validating and minifying all happen locally in your browser. Data is only sent to our server if you explicitly click Share link, and that copy is deleted automatically after 1 hour. This ensures json formatter privacy.
Hover any object or array in the formatted tree and click the small copy button that appears — it copies just that branch as valid JSON, without needing to manually select text.
Click Share link. We generate a link valid for 1 hour that opens a read-only formatted view of your JSON — no need to save and send a text file.
Check for common mistakes like trailing commas, single quotes instead of double quotes, missing commas between elements, or unquoted keys. Our built-in validator will show you the exact line and column.
Your JSON data never leaves your browser unless you explicitly choose to click "Share link". Any shared links generated will self-destruct and be automatically deleted from our servers after exactly 1 hour. This is a json formatter that doesn't upload data unexpectedly.