Character counters are a valuable tool for writers, editors, and professionals who work with text. By quickly and easily counting the number of characters in a piece of text, they can ensure that the text meets the requirements of the project or publication. Character counters can also be used to estimate the length of a document, or check errors in a document that's been edited or formatted. This can be useful for estimating how long a piece will take to read or understand a text's density. While character and word counts are not always perfect measures, they can be helpful tools for understanding and working with text.