Does this validate JSON?

Yes—invalid input is rejected with an error message.

Use the JSON minifier tool to remove whitespace.

Object key order follows JSON.parse; some editors sort keys separately.

Very large payloads may slow the tab; split or minify first if needed.

JSON Formatter Online – Pretty-Print & Beautify JSON

Paste JSON to format and beautify it for reading, debugging, or sharing. Output updates as you type; nothing is sent to a server.

JSON input

Formatted JSON

Enter JSON to format.

Your text is parsed as JSON, then written back with two-space indentation and a stable key order from the parser.

Invalid JSON shows a parse error so you can fix syntax before formatting.

Formatting does not change data values—only whitespace and line breaks for readability.

All processing runs in your browser. Avoid pasting secrets on shared devices.

Does this validate JSON?: Yes—invalid input is rejected with an error message.
Can I minify here?: Use the JSON minifier tool to remove whitespace.
Key order changed?: Object key order follows JSON.parse; some editors sort keys separately.
Large files?: Very large payloads may slow the tab; split or minify first if needed.