a bookmarkletall characters you use on a page,
Yesterday Peter van Grieken asked on Twitter if anybody knew a tool that displays all the different characters that are used on a page. This would be a handy tool for font subsetting: if your page only uses a few characters you don’t need to add all those other characters in your fancy font-files. Quite a few people answered to Peter’s tweet, but as far as I can tell nobody linked to a tool that does this. So I decided to create this tool.
I created a gist of the code for you to play with. Please let me know if you improved it!