We provide Noto Sans Arabic for using on web designing and some CSS to how to use them easy with woff2 and other modern minifed fonts.
Noto’s goal is to provide a beautiful reading experience for all languages. It is a free, professionally-designed, open-source collection of fonts with a harmonious look and feel in multiple weights and styles. All Noto fonts are published under the SIL Open Font License (OFL) v1.1, which allows you to copy, modify, and redistribute them if you need to.
To easily preview and download Noto fonts, visit http://www.google.com/get/noto.