Icons play a important role in a website or application. There are thousands of free Icons available which is very good but it can be hard to find the Icon Sets suitable for use in web design
I compiled a list of websites giving free icon sets either for personal or commercial use.

1. Iconfinder

   Iconfinder provides high quality icons for webdesigners and developers in an easy and efficient way.
   

2. Iconseeker

   The IconSeeker.com is the best icon search engine on web, it contents about 50,000+ high quaility icons and each icon has PNG, ICO and ICNS formats for Windows, Macintosh and Linux Systems.
   

3. Iconlook

   ICONlook.com is a place where to find your icons.
   

4. Iconsgator

   Free PNG Icons – Free ico Icons set – Download icns Icons- Only From Iconsgator.com.
   

5. Icofree

   You can download free high quality icons.
   

6. Veryicon

   The VeryIcom.com is an icon search engine, Graphic design,it contents high quaility web icons, Each Icon has PNG, ICO, you can free download for Windows, Macintosh and Linux.
   

7. Icondock

   IconDock offers royalty-free vector stock icons for your web and print projects.
   

8. Iconlibrary

   Icon Library, the iconshock blog | Free icons galore
   

9. Machoarts

   Machoarts blog enables you to Learn and Discover More in the World of Art. It Includes Photoshop Designing, Digital Art Works, Amazing Portraits, Art gallery and more.
   

10. Dryicons

    Free open source and custom icons and graphics of DryIcons.
    

11. Iconeasy

    IconEasy is the best icon site, you can free download 10,000+ hight quality Icons with ICO, PNG, ICNS formats for Windows(.ico), Mac(.icns) and Linux(.png) system.
    

12. Iconfever

    General website icons,portfolio,hand drawn,social media,grunge,extensive set,fun.
    

13. Webicongallery

    WebIconGallery.com collects best icons suitable for web use. All the icons are of professional quality and free to use in your own projects.
    

14. Iconzplanet

    fresh high-quality free icons
    

15. Iconspedia

    Download free png icons & Icon Packs.
    

16. 365icon

    Download the most professional, abstract, crazy, wacky, cool, and useful quality free icons on the web!
    

17. Freeiconsdownload

    Looking for Royalty Free icons? Free Icon Download Offers Free Vista icons, Free Desktop Icons, Mac os x icons, Stock icons.
    

Cheers!!
Joginder poswal