JSON Formatter and Validator: Free Online Tool
Paste JSON to check it for errors, format it with indentation, or minify it to save space. Your data stays in your browser.
Ad slot
Use the JSON Formatter and Validator
How to use the JSON Formatter and Validator
- Paste your JSON.
- Click Format to beautify or Minify to compress.
- If you see an error, fix the point it reports and try again.
About this json formatter and validator
JSON is the most common format for sending data between websites and apps. A single missing comma or quote breaks it, and formatted JSON makes mistakes easier to find. Use Minify before sending data over a network and Format when you need to read it. Common errors include trailing commas, single quotes instead of double quotes and unquoted keys.
Ad slot
JSON Formatter and Validator FAQ
Is my JSON uploaded?
No. It is processed in your browser.
Why do I get an unexpected token error?
There is a syntax mistake, often a trailing comma or single quotes.