Unannoy

developer

JSON Formatter

Format JSON so it is readable before you inspect, share, debug, or paste it somewhere stricter.

Indentation

Input

Output

Formatted, minified, or validation output will appear here.

Input

0

characters

Output

0

characters

Status

Ready

local parse

What this tool does

JSON Formatter pretty-prints valid JSON, helps expose structure, and makes compact API responses easier to understand.

When to use it

Use it when a blob of JSON is technically correct but too dense to scan without hurting your patience.

How it works

Paste JSON, format it with consistent indentation, then copy the readable version for review or debugging.

Useful for

  • Pretty-print API responses and config snippets.
  • Inspect nested objects and arrays more comfortably.
  • Clean compact JSON before sharing it in docs or tickets.

Questions before the button mashing

Does formatting change the data?

No. Formatting changes whitespace and indentation, not the JSON values.

Can it fix broken JSON?

It can point you toward invalid syntax, but badly broken JSON still needs a deliberate edit.

Related tools

Nearby tiny fixes