Does this JSON formatter upload my JSON?

No. Formatting, validation, minifying, tree rendering, and path inspection run locally in your browser.

Can this tool find invalid JSON?

Yes. The validator shows the browser parser error and keeps the original input available for correction.

Format adds indentation for readability, while minify removes unnecessary whitespace for compact storage or transfer.

Developer utility

Validate, format, minify, inspect, and copy JSON with a readable output panel, tree view, path table, and parser feedback directly in your browser.

Input

JSON input

Indent Sort object keys Escape slashes

Validation Waiting

Paste JSON to validate, format, minify, and inspect structure.

Size0 B

Depth0

Keys0

Items0

Output

Tree view

Paths

#	Path	Type	Preview

Examples

Value	Valid JSON example	Notes
Object	`{"name":"Ada"}`	Keys must use double quotes.
Array	`[1,2,3]`	Values are ordered.
String	`"hello"`	Strings use double quotes, not single quotes.
Number	`42`	No quotes around numeric values.
Boolean	`true`	Use lowercase `true` or `false`.
Null	`null`	Use lowercase `null`.

JSON does not allow comments, trailing commas, or unquoted object keys.
Formatted JSON is easier to review; minified JSON is better for compact transfer.
Sorting keys can make config diffs easier, but it changes the original property order.
The path table samples nested values so large JSON objects remain scannable.

Is this JSON formatter private?

Yes. The page uses browser JavaScript to parse and format JSON locally.

Can it fix invalid JSON automatically?

No. It reports parser errors, but it does not guess corrections that could change data meaning.

Can I minify JSON after formatting it?

Yes. Both actions parse the current input and write the chosen result into the output panel.