# 06.图片格式-WebP

* Google出品，Android原生支持，iOS需要单独适配如SD和Kinfisher
* 基于VP8编码
* 比JPEG小40+
* 有损 无损都有
* PNG转
  * PNG 转 WebP 的压缩率要高于 PNG 原图压缩率，同样支持有损与无损压缩
  * 转换后的 WebP 体积大幅减少，图片质量也得到保障（同时肉眼几乎无法看出差异）
  * 转换后的 WebP 支持 Alpha 透明和 24-bit 颜色数，不存在 PNG8 色彩不够丰富和在浏览器中可能会出现毛边的问题
* JPEG转效果更佳


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