Developer

JSON Formatter

Pretty-print JSON with consistent two-space indentation, right in your browser. Useful for inspecting API responses, log payloads, or untangling minified JSON before committing it to a fixture.

Tool Summary Answer Block

This tool accepts structured input and returns deterministic output in the browser with no server upload.

Tool name: JSON Formatter
Input intent: Provide source content to transform, validate, or analyze.
Output intent: Receive normalized output suitable for copy, reuse, or debugging.
Example input: {"name":"Alice","tags":["admin","ops"]}
Example output: { "name": "Alice", "tags": [ "admin", "ops" ] }

InputDrop file

Formatted JSON will appear here after you click Format.

OutputRead-only

Tool Introduction

Pretty-print JSON with consistent two-space indentation, right in your browser. Useful for inspecting API responses, log payloads, or untangling minified JSON before committing it to a fixture.

Tool Overview

JSON (JavaScript Object Notation) is a lightweight data format used by most web APIs. Minified JSON saves bytes on the wire but is hard to read by humans. The JSON Formatter parses your input with a strict JSON parser and re-emits it with two-space indentation and one key per line, so the structure becomes scannable. Nothing leaves your browser — formatting happens entirely on the client.

Use Cases

Use JSON Formatter when you need fast format and beautify json with proper indentation.
Handle developer workflows directly in the browser with no install required.
Support SEO long-tail intent by covering quick checks, troubleshooting, and one-off conversions.

Input/Output Examples

Input Intent

{"name":"Alice","tags":["admin","ops"]}

Output Intent

{
  "name": "Alice",
  "tags": [
    "admin",
    "ops"
  ]
}

FAQ

Is my JSON sent to a server?+

No. Formatting runs entirely in your browser using the built-in JSON parser.

Why does it say "Invalid JSON"?+

Your input could not be parsed by the strict JSON spec. Common causes: trailing commas, single quotes instead of double, comments, or missing closing brackets.

Can I change the indentation level?+

Not yet. The output uses two spaces per level, which matches the most common style guides.