JSON Formatter
Format, validate, and beautify JSON data online
development
json
formatting
Input JSON
Characters: 0Status: Valid
Formatted JSON
Format or validate JSON in three steps
- Paste JSON data into the input field.
- Choose an indent size and review the formatted result, or minify it to one line.
- If an error appears, correct the JSON syntax and check it again.
Scope and privacy
The tool parses standard JSON and cannot infer missing commas, quotes, or other syntax. Processing happens in your browser; do not paste sensitive data on an untrusted device.
Frequently asked questions
What is the difference between format and minify?
Formatting adds indentation and line breaks for readability. Minifying removes whitespace that does not change the JSON data.
Why is my JSON invalid?
JSON requires double quotes around keys and strings, and it cannot have trailing commas. The tool displays the parser error to help locate the issue.
Is my JSON uploaded to a server?
No. Formatting, minifying, and validation happen in your current browser.