Icons8 allows users to search icons and insert directly into Photoshop, Xcode, or any other program.

Features
* 5000 free icons for developers and designers
* PNG format in multiple sizes from 25x25px to 512x512 px
* iOS 7, Windows 8, and Android styles
* Search by tags
* Drag to Xcode, Photoshop, or anything
* Vector icons are not included in the application, but are available for a fee
* 2 seconds to find an icon and insert it into your work
* All files are on disk -browse the folders with Finder and all icons are there
* Icons are tagged - If you are looking for an envelope icon, any related keyword would work: mail, message, send, etc.
* Different formats
* PNG in different sizes from 25x25 to 512x512
* AI, SVG, and EPS vectors

Compatibility: OS X 10.9 or later 64-bit
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