JSON Formatter & Validator
Clean up, format, and validate your JSON data to make it perfectly readable and error-free.
How to Use the JSON Formatter & Validator
This tool helps you make JSON (JavaScript Object Notation) data easy to read and ensures it is correctly structured. Raw JSON is often "minified" into a single, long line to save space, making it nearly impossible for a human to read. Our formatter instantly adds line breaks and indentation to make it beautiful.
Step-by-Step Guide:
- Paste Your JSON: Copy your raw or minified JSON data and paste it into the "Your JSON Input" box on the left.
- Format & Validate: Click the "Format / Validate" button. The tool will immediately process your data.
- Review the Output:
- If your JSON is valid, a clean, perfectly indented version will appear in the "Formatted & Validated Output" box on the right.
- If there is an error in your JSON structure, a red error message will appear below, telling you what's wrong (e.g., "Unexpected token").
- Minify (Optional): If you have formatted JSON and want to compress it back into a single line, click the "Minify" button.
- Copy the Result: Click the copy icon in the top-right of the output box to instantly copy the result to your clipboard.
Common JSON Errors to Check:
- Missing Commas: Every key-value pair (except the last one in a block) must be followed by a comma.
- Trailing Commas: An extra comma after the last element in an object or array is not allowed.
- Incorrect Quotes: Both keys and string values in JSON **must** be enclosed in double quotes (`"`). Single quotes (`'`) are not valid.
- Unclosed Brackets or Braces: Ensure every opening `[` or `{` has a corresponding closing `]` or `}`.
