JSON Formatter & Validator

Key Features

• Formats JSON with configurable indentation
• Validates JSON and reports parsing errors
• Minifies JSON for compact payloads
• Shows useful stats such as key count and byte size
• Designed for API debugging, logs, and configuration files

How to Use JSON Formatter & Validator

1. 1Paste a JSON object, array, API response, or configuration snippet.
2. 2Choose format, validate, or minify depending on your goal.
3. 3Run the tool and review the formatted output or validation message.
4. 4Copy the cleaned JSON back into your editor, API client, or documentation.

API response debugging example

When an API returns a dense one-line response, paste it into the formatter to expand nested objects and arrays, then validate the structure before using it in code or documentation.