Google Fonts is an intuitive and robust directory of open source designer web fonts, allowing anyone to share and integrate typography into any project seamlessly—no matter where they are in the world.
Dank Mono is the coding font you want. Designed for aesthetes with code and Retina displays in mind. Delightful ligatures and an italic variant.
Type Hero is a website lets you try out all of Google fonts with multiple color combinations.
You could use it pick a font for your startup logo or tag-line and test it with awesome color pallets.
It lets you search for Google fonts, change the canvas color, text color and also font size & weight/style.