JSON Formatter

Paste or upload JSON, select indentation, and copy readable output. Formatting preserves the parsed values.

Ready.

How to use this tool

Indent and validate JSON for easier reading. Enter your data above, choose the action, and review the result before using it elsewhere.

JSON requires double-quoted property names and strings. Comments and trailing commas are not valid JSON.

Formatting parses and reserializes the input, so some numeric representations may be normalized.

Common questions

How does JSON Formatter work?

JSON requires double-quoted property names and strings. Comments and trailing commas are not valid JSON.

What should I check before using the result?

Formatting parses and reserializes the input, so some numeric representations may be normalized.

Is my input uploaded?

No. This tool processes input in your browser. OctalPilot does not receive the content you paste here.