Free Developer Tool
{ } JSON Formatter & Validator
Format, minify and validate JSON with clear syntax feedback. Your data stays private because processing happens entirely in your browser.
How to use the JSON Formatter & Validator
- Paste JSON into the input box.
- Select Format, Minify or Validate.
- Read the success message or correct the indicated line and column.
- Use Copy Result when the output is ready.
About the JSON Formatter & Validator
This developer-friendly utility makes JSON easier to read, verifies its syntax and produces compact JSON for storage or transfer. All processing happens in your browser, so no external API is needed.
Frequently Asked Questions
What does the JSON validator check?
It parses the entire input and highlights the approximate location of syntax problems such as missing commas, quotes or brackets.
Does this tool send JSON to a server?
No. Your data remains in your browser.
What is JSON minification?
It removes unnecessary whitespace while keeping the data unchanged.