JSON Formatter
Pretty-print JSON with 2 or 4-space indentation. All processing runs in your browser — your data never leaves your device.
Indent:
Tip: Press Ctrl+Enter to format.
What is a JSON Formatter?
A JSON formatter (also called a JSON beautifier or pretty-printer) takes compact or minified JSON and adds consistent indentation and line breaks, making it much easier to read and debug.
When to use it
- Inspecting API responses — paste a compressed response body and immediately see its structure.
- Debugging configuration files — spot missing commas, mismatched brackets, or incorrect nesting at a glance.
- Code reviews — share well-formatted JSON with teammates for clearer diffs.
Privacy
This tool uses the browser's built-in JSON.parse and JSON.stringify APIs. No data is transmitted to any server.