Free Online JSON Formatter and Validator
Working with strict JSON data can be frustrating when dealing with long, flattened responses from APIs or scattered logs. Our JSON Formatter eliminates the hassle by taking your messy, unreadable JSON and transforming it into properly indented, color-structured text.
Beautify or Minify JSON Instantly
- Beautify: Choose between 2 spaces, 4 spaces, or tab indentation to perfectly format arrays and nested objects.
- Minify: Compress your JSON into a single line. This removes all unnecessary whitespace and newlines, substantially reducing file size for transmission over a network or storage.
- Validate: If there's a typo, missing quote, or trailing comma, the tool will instantly catch the syntax error and alert you before you use the data in a production environment.
Why use CommaTools JSON Viewer?
Your JSON data may contain sensitive API keys or user records. With CommaTools, all the formatting logic happens securely in your local browser using JavaScript. Nothing gets uploaded to a server, making it a completely private and secure development tool.