Icon fonts are a flexible solution for adding icons to your website. Having the icon contained in the font allows you to switch size and scale, color and add effects easily without having to redraw an image. So here are 28 great resources for free icon fonts, most of these libraries include almost all of the icon applications that you can imagine a use for.

Stackicons

Icon font and Sass-based construction kit for Stackicons-Social, which supports multiple button shapes and a unique “multi-color” option in CSS for over 60 social brands.

OpenWeb Icons

The OpenWeb Icons is a web-font that gives you scalable vector icons/logos of some open communities, standards or projects.

Mono Social Icons Font

Mono Social Icons Font is a webfont based on Mono Social Icons, which includes 100 social icons in three variations under one font : circled, rounded and regular.

Social Icon Sets

A new set of 22 social icons. Those social icons are a must to replace image based icons and are very versatile in their use.

Genericons

Genericons are vector icons embedded in a webfont designed to be clean and simple keeping with a generic aesthetic.

Socicon

Socicon is an easy way to customize the look and feel of social icons for web projects.

Open Iconic

An open source icon set with 223 marks in SVG, webfont and raster formats.

Icon Works

Simple Line Icons Webfont

All 160 simple line icons are now embedded in a webfont for more convenient use on the web or in a native application.

Metrize Icons

Metrize Icons is a free icon set, it works perfectly for your apps or web projects.

Weather Icons

Weather Icons is a font of 123 weather themed icons, ready to be dropped right into Bootstrap or any other project.

Helium Icon Set

A free icon set with more than 100 useful app icons designed by Taras Shypka. The set comes with AI, EPS and SVG files and a ready-to-use icon font.

Linea

Auticons

Auticons is an icon font and CSS set that harnesses the awesome power of attribute selectors.

IconVault

Font Awesome

the iconic font designed for use with Twitter Bootstrap.

Symbolsets

Symbolsets are semantic symbol fonts. They work in modern browsers and anywhere OpenType features are supported.

Typicons

Typicons are free-to-use vector icons embedded in a webfont kit for easy use in your UI, whether it be on the web or in a native application.

Modern Pictograms

Modern Pictograms is a free open type front that contains common images used in web interfaces.It can be used by designers or to create wire frames and is also compatible with @font-face.

Fontello

This tool lets you combine iconic webfonts for your own project. With fontello you can: shrink glyph collections, minimizing font size, merge symbols from several fonts into a single file, access large sets of professional-grade open source icons.

Fico

Fico is a font with 52* simple, commonly used icons and glyphs, served on the web via @font-face.

Social Media Icons Pack

Socialico is a package of 74 social media icons, combined within a single wieght font and designed by Jelio Dimitrov a.k.a. Arsek.

IcoMoon

IcoMoon is a free icon set of 300 superb icons, also available as Web Font. Use the @font‑face method to have your icons in vector and in any size or color. You may basically add any CSS effect you wish. IcoMoon is fully accessible and compatible with screen readers.

Arrow

Never design an arrow again. Arrrows is a fully scalable icon font for your design.

Foundation Icon Fonts 2

Custom icon sets that are stored in a handy web font and are coded to be more accessible. A couple lines of CSS and the right markup will get you going in no time.

Pictos

Pictos is a set of icons made by Drew Wilson. The icons are beautifully made and so easy to use in any design.

Sosa

Sosa includes the 120+ icons I have found most useful. The download includes the .ttf .eot .svg & .woff files need to use this icon font via @font-face.

Ligature Symbols

Ligature Symbols is to display the symbol with a ligature features.

StateFace

A font you can use in your web apps when you want tiny state shapes as a design element. It’s designed to be used at small sizes, and the shapes have been highly simplified to make for a really small font. All 50 states plus D.C. and a wee continental U.S. map fit in about 22k, and they look great on Retina displays.