Font Awesome Get vector icons and social logos on your website with Font Awesome, the web's most popular icon set and toolkit. Visit Font Awesome Icons DevSites
Flat Icon The largest database of free customizable icons in the world. Flaticon has more than a million icons in all formats, for all kind of projects, presentations, apps, websites, etc. Visit Flat Icon Icons
Simple Icons Over 1000 Free SVG icons for popular brands. See them all on one page at SimpleIcons.org. Contributions, corrections & requests can be made on GitHub. Visit Simple Icons Icons DevSites