iFontFace is described as '@font-face kits, convert font file .ttf .otf to font-face .eot .svg .woff ttf to use custom font on the web page' and is an website in the Development category. There are six alternatives to iFontFace, not only websites but also apps for Wordpress and Mac. The best alternative is Fontello, which is both free and Open Source. Other great sites and apps similar to iFontFace are Fonts For Web (Free), @font-face Generator (Free), Webfont (Freemium) and Transfonter (Free).
The @font-face CSS rule allows web developers to specify online fonts to display text on their web pages. By allowing authors to provide their own fonts, @font-face eliminates the need to depend on the limited number of fonts users have installed on their computers.
Font2web converts any .ttf (TrueType Font) or .otf (OpenType Font) file to .ttf, .otf, .eot, .woff and .svg files. It also creates a CSS file and a demo HTML file to show you how to use webfonts on your website - using CSS @font-face.