◇ Useful tools
JSON Formatter and Minifier
Paste JSON to indent it for reading or remove unnecessary whitespace. Invalid JSON produces a clear error.
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How to use it
- Paste JSON into the input box.
- Choose pretty print or minify.
- Fix any syntax error, then copy or download the .json result.
What to know
Only valid JSON is accepted. Comments, trailing commas and JavaScript expressions are unsupported. Input limit: 200 KB UTF-8; pretty output limit: 1,000,000 characters. Extremely deep JSON may be rejected. This does not validate a schema or the meaning of values.
Frequently asked questions
Can I keep JSON comments?
No. Standard JSON does not allow comments or trailing commas.
Is the content uploaded?
No. Formatting runs in this browser.