Is there a way to check what fonts are installed on machines via the web?

Question

Is there a way to test what fonts are installed or maybe a way I can read out all of them? I want to do a survey in our product to see what fonts I can use on our projects.

Answer 1

There is a script that renders a bunch of DIVs in different fonts, then checks to see if the resulting DIV has the right dimensions for the given font.

http://www.lalit.org/lab/javascript-css-font-detect

Answer 2

It is possible, so long as Flash is available. See http://www.maratz.com/blog/archives/2006/08/18/detect-visitors-fonts-with-flash/