Fonts Typography; JavaScript; 3 Comments. Character Count Online is a free online character and word counting tool. TextArea Character Counter?? Definition and Usage. I am not sure if it can in fact be done. It also has the ability to automatically cut off the text when the character length has exceeded the limit. Complete code of our demo is as follow: Last Modified: 2013-12-03. Right now, it says NaN because it seems to not find the length of how many characters are in the field, which at the beginning is 0, so the number should be 500. The