You can use this resource to convert any Cantonese text into Unicode. You can also convert Jyutping to Unicode. Unicode is used online and helps to make sure that websites can be displayed properly with the Chinese characters. The Unicode standard is constantly being updated to include new characters, and the most recent version includes over 110,000 different characters. This standard is what ensures that you can view Cantonese characters correctly on a website, even if your computer doesn't have Chinese fonts installed.
Just enter the Cantonese text you want to convert to Unicode in the box below and click "Convert".