Access over 900 material system icons, available in a variety of sizes and densities, and as a web font.
阿里巴巴矢量图标库，数量巨大
可以免费下载Gif动态图标
The complete set of 675 icons in Font Awesome
Search through 300,000 free icons
字节跳动旗下开源图标库，IconPark图标库是一个通过技术驱动矢量图标样式的开源图标库
634,000+ Free vector icons in SVG, PSD, PNG, EPS format or as ICON FONT.
