Typecast by Monotype is the ultimate typography tool a web designer could ask for. It is a browser based tool that enables Web designers to totally control the use of web fonts. Including features like adjusting the font size, line spacing and many other settings. Typecast works with all famous Web font services including fonts.com, Google Fonts, MyFonts, Adobe Typekit, Webtype, FontDeck etc.
One of the distinct feature about Typecast is the ability to export production-ready HTML/CSS code in real time. Designers can now visually style the text in browser and experiment with different fonts – thereby being more productive and have better control over the workflow.
The best thing – it is free for everyone.