As the online design community continues to grow more graphical designers are sharing their creative output with others for free. It really it great to see so many talented designers spend time helping others and giving away free graphics in editable files for others to use in commercial and personal contexts without restrictions. If you are looking specifically for social icons sets click here.
2013 has been the year of flat design and so we have put together some of the best flat icon sets that are available to download for free. Click on the images to be taken to the download pages of the icon sets. Most are available in layered and vectors formats so you can edit, scale and customize how you wish. Thanks to all the designers for making these great resources available to share – we hope you enjoy them and put them to good use.
Updated: 13th November 2013
180 Flat Icons
Designed by Elegant Themes, this set has 90 icons in 2 versions (full color and single colour). This download includes .ai, .eps, .pdf, and .png formats and 64px and 128px sizes. They are open source files and free to use under the GPL.
Dripicons
All free flat icons from Amit Jakhu. Click the image above to download from his Behance page. They come in PSD, AI, PDF, EPS, SVG & Webfont formats so very easy to edit, scale and customize.
IOS7 Style Icons
These attractive flat IOS7 icons have been designed by Ksenia Butyrina from the Ukraine. They are part of her WomensLog IOS7 concept and can be download for free in PSD.
Another free icon set from a designer page at Dribbble. Designed by Buatoom. They are scalable and available in PSD and EPS.
Dripicons
Flat icons designed by Jan Dvořák. PSD download format only.
47 Flat Icons
A nice bunlde of 47 free flat icons from Studio4.
Simple Line Icons
A large collection of simple flat single line icons which would be ideal for mobile sites or apps. Available in PSD and Webfont formats and created by GraphicBurger.
Sketch Icon Set
These well crafter icons are all free to download and designed by Pausrr at Dribbble.com
This set consists of 40 PSD icons with 16px x 16px dimensions. All are free for commercial use and layers are vector for easy resizing and customization.
40 Flat Social Media Icons
This icon bundle consists of 40 flat icons that are available in 4 sizes (32×32 px, 64×64 px, 128×128 px, 256×256 px). The designer, GraphicBurger, say they were inspired by Google’s new style – all are free for personal and commercial projects.
Geomicons Squared Lite
160 simple line icons available to download for free from Brent Jackson at Dribbble.
Flat Colour Icons
A fantastic set of flat color icons created by Michael Dolejš.
168 Flat Line Icons
Download 168 line icons courtesy of Tom Junker. They are in photoshop format.
OtherIcons.com
60 awesome icons created after 10 hours hard graft by Tomas Bartko and available as Ai, EPS and SVG files.
60 Line Icons
60 scalable line icons created by Situ Herrera from Madrid. All available for personal and business use without restrictions.
Flat UI Icons

This free icon bundle consists of 60 icons (30 Solids and 30 outlines). All are vectors and fully scalable.. The full set of 768 icons which comes in PSD, AI, EPS, and SVG are $27 and available here.
Free Icons Set
Another premium free icon pack that you can download and use both for commercial and non-commercial purposes.
9 Free Flat Icons
A set of 9 free flat icons from the folks at monkee-boy.com
90 Circle Flat Icons
These 90 set pack comes with 2 variations (full colour & single colour) and the download includes the following variations: .ai, .eps, .pdf, and .png (64px and 128px). They are open source under GPL and were created by Elegant Themes.
Streamline Icon Set

This set includes a total of 100 vector icons (SVG & PNG formats) which you are allowed to use for business projects and on personal websites.
Pink Moustash Retro Icon Set
A new free icon set consists of 25 icons, in 4 colors (pink, blue, grey & green), in 48×48px and 60×60px resolution. New icons: pinterest, google+, instagram, devianart, dribbble, forrst, stumble upon, twiter bird, posterious, blog, behance, apple, windows, addthis, sharethis, paypal, orkut, newsvine, e-mail, star, heart.