Thenounproject

提供大图标，图形，人物，也是一个开源的矢量图标库。The design project with open-source illustrations for any idea you can imagine and create. Create beautiful websites, products and applications with your color, for free.

Iconmonstr图标-确保您在网站上获得最佳体验。Free simple icons for your next project

Stockio.com - 下载免费矢量，照片，图标，字体和视频

有一个较大的图标数据库、先进的过滤和搜索结果匹配系统。Download Free Icons and Free Icon Packs. More than 500,000 icons in PNG, ICO and ICNS icons for Mac! +2000 icon pack for free use.

致力于分享按钮、图标、网页模版、用户界面、Mockups等PSD素材。Free PSD & Adobe Xd templates designed by talented creatives who choose to share their work with the rest of the community.

海量图标搜索可生成css sprites。Icon Ninja collects 700081 free icons in 16306 icon sets, including 33350 vector icons and 666731 transparent background png icons, also you can generate icon css sprites online