Add your JSON.
Paste an object or array into the input panel. The content stays in this browser tab.
FREE WEB TOOL · LOCAL PROCESSING
Format or compact structured data with a few clicks. Nothing is uploaded.
02 / HOW TO USE
Purpose: make structured data readable, compact or ready to save.
Paste an object or array into the input panel. The content stays in this browser tab.
Use Format for readable indentation or Minify to remove extra whitespace. Invalid JSON shows an error.
Copy the result or download it as a .json file. No account or upload is needed.
Formatting uses the browser’s built-in JSON parser. The tool does not send or save your input.