About the JSON Formatter tool
The JSON Formatter is a developer utility that validates and beautifies JSON data directly in your browser. It highlights syntax errors, pretty-prints valid JSON with indentation, and can also minify JSON for compact storage or transmission.
This tool is ideal when you work with APIs, configuration files, or front‑end applications and need a quick way to inspect or debug JSON. Since everything runs locally in JavaScript, your data is not sent to any server.
How to format JSON
- Paste your raw JSON into the “Input JSON” area.
- Click Format JSON to pretty‑print and validate the data.
- Use Minify JSON when you need a compact, single‑line version.
- Copy the formatted output back into your project or API client.
You can discover more developer productivity tools in the Developer Tools category on the home page.