JSON Formatter

Format, validate, and beautify your JSON data.

Processed entirely in your browser

How it works

Format and validate JSON in three simple steps.

1

Paste your JSON

Paste raw JSON data from your API, config file, or any source.

2

Choose an action

Format for readability, minify for production, or validate structure.

3

Copy the result

Copy the formatted or minified output to your clipboard.

Why use KepTools for JSON?

100% private

Your data never leaves your browser. All processing happens locally.

Instant results

Format, minify, and validate JSON instantly with zero latency.

Detailed insights

See key counts, nesting depth, and byte size at a glance.

No account needed

Just open the page and start formatting. No sign-ups or logins required.