Prettify JSON

Format and beautify JSON with proper indentation. Free, runs in your browser — data never leaves your device.

Free No signup Files stay on your device Instant

Drag & drop your file here, or click to browse

Accepts JSON

Done!

How to Prettify JSON

1

Paste or upload JSON

Paste your JSON text or upload a .json file.
2

Format automatically

Your JSON is instantly formatted with 2-space indentation.
3

Copy or download

Copy the formatted JSON to clipboard or download as a file.

How do I prettify JSON?

Paste your JSON or upload a file. It is instantly formatted with proper indentation. Copy or download the result.

Is my data safe?

Yes. JSON formatting runs entirely in your browser. Your data never leaves your device.

What indentation style is used?

2-space indentation by default. This is the most common standard for JSON formatting across APIs and configuration files.

Can I prettify minified JSON?

Yes. Minified JSON is the most common use case. Paste your single-line JSON and get a readable, indented version instantly.

Does this work with large JSON files?

Yes. Since it runs in your browser, performance depends on your device. Files up to several MB format instantly on modern browsers.

Format and beautify JSON with proper indentation. Free, runs in your browser — data never leaves your device.