Font Squirrel @font-face Kits
Font Squirrel is perhaps the most popular font-replacement resource at the moment. Font Squirrel relieves any worry you may have about font licenses, as all of the fonts provided are freely available for commercial purposes. The site has hundreds of fonts to choose from, everything from sans-serif to novelty style fonts. The site offers @font-face kits that provide you with all the formats you need and also includes the HTML and CSS needed as well. If you can’t find the @font-face kit for the font you wish to use, they also provide a generator which will convert your font file into the multiple formats you will need for free. When using the generator, you need to ensure you have the correct license that permits you to use the font on your website.
Free Font Converter
Free Font Converter, as the name suggests, is a free web application that allows you to convert almost all font format to another on Windows, Mac and Linux. Besides the common font formats such as TrueType (.ttf), OpenType (.oft) and PostScript (.ps), it also supports other lesser known formats like .dfont, .svg, .bin, and many others. No need of additional software or registration is required to use Free Font Converter.