100% Private Browser Tools

JSON Formatter

Dev Tools

Format, validate and minify JSON in your browser — with the line, column and a plain-English reason when it will not parse.

Runs in your browser•Zero cloud uploads / Files stay on device•No account required

JSON

Output

Key order

Sorting reorders object keys at every level. Array order is data, so it is never touched.

Optimized For Platforms

developer

How it works

1Paste your JSON in.

2Pick an indent, or Minify to strip every space.

3If it will not parse you get the line and column, the offending line with a caret under it, and what is actually wrong — a trailing comma, a single quote, an unquoted key.

4Sort keys A–Z if you are diffing two documents that only differ in key order.

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