🅰️ 替换 WebP AlphaReplace WebP Alpha Channel
用统一不透明度替换 Alpha 通道。本地处理。可设置「不透明度」。Replace the alpha channel with a flat opacity. Processed locally. Settings: Opacity.
使用说明与常见问题How-to & FAQ
「替换 WebP Alpha」是什么？What is the Replace WebP Alpha Channel tool?
用统一不透明度替换 Alpha 通道。本地处理。可设置「不透明度」。Replace the alpha channel with a flat opacity. Processed locally. Settings: Opacity.
如何使用「替换 WebP Alpha」？How do I use the Replace WebP Alpha Channel tool?
在「替换 WebP Alpha」中，选择或拖入文件，按需设置「不透明度」等选项，然后点击每个结果旁的「下载」按钮即可；有多个文件时也可以点「全部下载（ZIP）」一次打包下载。In the Replace WebP Alpha Channel: Choose or drop your files, set "Opacity", then click the Download button next to each result (with several files, "Download all (ZIP)" saves them together).
为什么只导出 WebP？Why does it only export WebP?
本页是 WebP 系列工具之一：读入图片后把所有非完全透明像素的 Alpha 换成你填的百分比，再按 WebP 格式导出，便于在 WebP 工作流里直接使用。需要 PNG 或 JPG 结果时，请用对应的通用图片工具。This page is one of the WebP tools: it loads the image, replaces the alpha of every pixel that is not fully transparent with the percentage you enter, and exports the result as WebP so it fits straight into a WebP workflow. For PNG or JPG output, use the matching general image tool.
会上传吗？Uploaded?
不会，图片只在浏览器本地处理。No. Processed locally in your browser.
有哪些选项可以调整？What options can I adjust?
「替换 WebP Alpha」的设置：「不透明度」默认 100，范围 0–100；可选文件：常见图片格式（含 HEIC、HEIF、AVIF、WEBP、BMP、JFIF）。每次生成结果都按当前设置处理。Settings in the Replace WebP Alpha Channel — "Opacity" default 100, range 0–100; files: common image formats (including HEIC, HEIF, AVIF, WEBP, BMP, JFIF). The result always uses the current settings.
「替换 WebP Alpha」免费吗？需要注册吗？Is the Replace WebP Alpha Channel free? Do I need an account?
「替换 WebP Alpha」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Replace WebP Alpha Channel is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.