linearicons.com

Ultra Crisp Vector Line Icons (SVG, PNG, PSD, CSH, EPS, Icon Font and more)

Linearicons is the highest quality set of line icons, matching with minimalist UI designs in iOS. This icon pack was designed on a 20×20 grid with a lot of care, resulting in crisp and pixel perfect icons. Both free and premium versions are easy to use in any platform including iOS and Android.