Iconmonstr released over 600 vector icons for your next project. All of them are very clean and nicely-designed. You can download PNG and SVG format for each icon. You can easily sort by Recent, Popular or Random. You can also search specific icons by entering keywords.

All these icons are licensed under a Creative Commons Attribution 3.0 Unported License. The icon can be used freely in both personal and commercial projects with no attribution required.

Requirements: -
Demo: http://iconmonstr.com/
License: Creative Commons License