You can generate web fonts from your projects created in Iconly by going to a project's page. You may do this via the shortcut menu, Projects, and clicking on the project name on the dropdown menu that appears.
On the project's workspace, click on the context menu to the right of the project title, and the dropdown menu that appears, click on Generate Font. The font will then be downloaded to your computer.
The generated folder is inside a ZIP file, so you need to unzip that first. Then you'll see: