PNG 转 WebP
把 PNG 转成 WebP 并保留透明，体积更小。
How to use / 使用步骤
- Upload your PNG images (transparency is fine).上传 PNG 图片（含透明背景也可）。
- Convert to WebP — the transparency (alpha) is preserved.转换为 WebP，透明通道会被保留。
- Download the smaller WebP files.下载更小的 WebP 文件。
About PNG to WebP Converter / 关于本工具
PNG is a lossless format prized for sharp edges and transparency — logos, icons, screenshots, UI assets. The downside is size: a detailed PNG can be several megabytes. WebP supports transparency too, and converting PNG to WebP often cuts the file dramatically while keeping crisp edges and the alpha channel intact. For web graphics this is one of the easiest wins available: the image looks the same but downloads far faster.
PNG 是无损格式，以锐利边缘和透明度见长——logo、图标、截图、UI 素材都爱用它。代价是体积：一张细节丰富的 PNG 可能有好几兆。WebP 同样支持透明，把 PNG 转成 WebP 往往能在保留锐利边缘和透明通道的同时大幅缩减文件。对网页图形来说，这是最容易拿到的收益之一：画面不变，下载却快得多。
Lossless vs lossy WebP / 无损与有损 WebP
WebP can be lossless (perfect copy, still smaller than PNG) or lossy (smaller again, with a tiny quality trade-off). For flat graphics with few colors, lossless WebP is ideal; for transparent photos or complex images, a high-quality lossy WebP saves even more. Transparency is kept either way.
WebP 可以是无损（完美复制，仍比 PNG 小）或有损（更小，伴随极小的质量取舍）。对颜色不多的扁平图形，无损 WebP 最合适；对带透明的照片或复杂图像，高质量有损 WebP 能省得更多。两种方式都会保留透明。