全角変換 is a free Chrome add-on developed by R4HS Inc. It is designed to automatically convert half-width alphanumeric characters to full-width characters when entering address information or other text inputs.

This add-on is particularly useful when dealing with full-width characters such as alphabets, as it eliminates the hassle of manually inputting them. It supports input fields with the "text" type and the values of textarea tags.

The characters that can be converted include numbers 0 to 9, lowercase alphabets a to z, hyphen "-", space " ", period ".", and comma ",".

With 全角変換, users can save time and effort by automatically converting half-width characters to their full-width counterparts, ensuring accurate and consistent input in various contexts.