You can also test your font and OpenType layout features as a web font on a locally generated web page. Choose Test Web Font (woff/woff2) from the Font menu or use the shortcut Ctrl+F5

 
If OpenType Layout Features are present, you can activate them using the buttons (default, on, and off) on the right.

 

If you intend to use your font on the Web, ligatures will be disabled as soon as you set letter-spacing to a non-default value. For example:

letter-spacing: 0.1em;

 

You can edit the predefined preview text through the FontCreator Data Files.