Open .json files with automatic pretty-printing and syntax validation.
or click to browse — accepts JSON
Upload a JSON file above to preview it here.
Drag it onto the upload panel or click to browse.
Valid JSON is pretty-printed with 2-space indentation for easy reading.
If the file isn't valid JSON, the exact parsing error is shown.
Yes — the file is parsed with the browser's native JSON parser, so any syntax error is reported immediately.
This tool is a read-only viewer; use a code editor for edits, then re-open the updated file here.