A formatter is a tool or software that organizes and structures data or text according to specific rules or standards. It ensures that information is presented in a clear and consistent manner, making it easier to read and understand. Formatters are commonly used in programming, document creation, and data processing. In programming, a formatter can automatically adjust code to follow style guidelines, improving readability and maintainability. For example, a code formatter might align indentation, add or remove spaces, and format comments. This helps developers, such as those using languages like Python or Java, maintain a clean codebase.