選んだ文字数数えます is a free Chrome extension designed to count the number of characters in selected text on web pages. This tool provides a convenient way to monitor character counts in real time, displaying the results in a pop-up near the mouse cursor for three seconds. It is particularly useful for writers and social media users who need to keep track of character limits while composing content.

This extension is compatible with most websites, making it versatile for various online tasks. By simply selecting the desired text, users can instantly see the character count without needing to open a separate tool or application. This functionality enhances productivity and ensures that users can easily adhere to specific character requirements while writing.