If you have any experience in web design, chances are you’ve done a search for icon sets more than once. The web has an enormous amount of resources for free icon sets available to download.
This top ten list takes into account, quality, quantity, sharpness, and file types into consideration. By file types, I am referring to web fonts, vectors, and the standard image file types ( .JPG, .PNG, .TIFF, etc.. ).
Flaticon is a personal favorite of mine, with an impressive 58, 000+ selection of free icons to choose from. It has an amazing UI with an optional Adobe extension for Photoshop, Illustrator, and After Effects. Each icon gives you the option to download in EPS, PNG, SVG, PSD formats, and more recently, a free font-face generator.
FontAwesome, a GitHub project. An ideal choice for quick CSS icon-integration. Fontawesome was originally designed for the bootstrap framework but quickly gained traction as a web-icon standard. A better option would be to use the font awesome CDN, available for free at http://www.bootstrapcdn.com/#fontawesome_tab.
Fontello is great icon font generator, which is also available on GitHub. It takes popular icons from open source projects and allows you to pick your own icon set. This is more useful if you don’t want the extra CSS code for the icons not being used.
Iconfinder is a site that exactly does what the name entails. With a quick search, you have the option to download fonts in PNG, ICO, ICNS, or SVG formats.
Find Icons is a good place to find free font kits. This website offers unique designs from talented artists and a variety of multiple formats to choose from.
Typicons, yet another great project from GitHub. Typicons refers to itself as an all-purpose vector icon source, which is great. If you’re new to using web icons, this would be a good place to start.
Iconmonstr is a fitting name for this resource. Made in Germany, this website gives you a monster-like vision of it’s icons to browse through.
Much like Fontello, We Love Icon Fonts takes the best free fonts available on the web and complies them for you. The friendly UI makes it easy to import your favourite fonts into CSS for your website.
The noun project is the only one on this list you have to sign up for. But it’s a great resource for free web fonts. I will have to give them credit for uniqueism. There are icons on here for the likes of which, I have not seen anywhere else.
This one is a little more out of date, but I give it credit for originality and good fashion realism. If your looking for more trendy sets, they do offer flat icons as well.