Thanks to modernizr, I can perfectly integrate my websites into different browsers, significantly reducing compatibility issues. One of the most interesting features of the application is that it allows you to download only the libraries you are interested in, in order to make your page faster and avoid code conflicts.

Awesome library for detecting what features are supported for the multitude of browsers and devices. Very easy to generate a javascript file to include with code. A must for developing sites that is accessible to to wide range of audiences.

It's great for front-end development. Helps with cross browser apps.