JSON Formatter & Validator
Format, validate, beautify and minify JSON online. Turn hard-to-read JSON into clean, structured data in seconds.
Paste your JSON
Your data stays in this browser session and is not uploaded by this tool.
Tip: JSON requires double quotes around property names and string values. Trailing commas and comments are not valid JSON.
What can this JSON tool do?
Format JSON
Add indentation and line breaks to make nested objects and arrays easier to inspect, debug and maintain.
Validate JSON
Check JSON syntax using the browser's JSON parser. If parsing fails, the error message can help you locate the issue.
Minify JSON
Remove unnecessary whitespace to make a compact JSON string for testing, storage or transmission.
How to use the JSON Formatter
No extension or account required. Use the tool directly in your browser.
- Paste your JSON. Copy a JSON object or array from an API response, config file or code editor.
- Choose an action. Select Format JSON, Validate JSON or Minify JSON.
- Review the result. Read the status message and inspect the output for errors.
- Copy or download. Copy the result to your clipboard or download it as a
.jsonfile.
JSON Formatter FAQ
What does a JSON formatter do?
A JSON formatter adds consistent indentation and line breaks to valid JSON so it is easier to read, inspect and debug.
How do I validate JSON?
Paste your JSON into the input editor and click Validate JSON. The tool reports whether its syntax is valid and displays a parsing error if it is not.
Is my JSON uploaded to a server?
No. This tool parses and formats JSON locally in your browser. The JSON content is not sent to the AAIDIAA Toolbox server by this page.
What is the difference between formatting and minifying JSON?
Formatting adds indentation and line breaks for readability. Minifying removes unnecessary whitespace to produce a compact JSON string without changing the data.