⬛ WebP 转灰度Convert WebP to Grayscale

把 WebP 转为灰度后导出。本地处理。Convert a WebP to grayscale, then export. Processed locally.

点击选择或拖放图片（可多选）Click or drop images here (multiple allowed)

自动转灰度Converts to grayscale automatically

使用说明与常见问题How-to & FAQ

「WebP 转灰度」是什么？What is the Convert WebP to Grayscale tool?

把 WebP 转为灰度后导出。本地处理。Convert a WebP to grayscale, then export. Processed locally.

如何使用「WebP 转灰度」？How do I use the Convert WebP to Grayscale tool?

在「WebP 转灰度」中，选择或拖入文件，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 Convert WebP to Grayscale: Choose or drop your files, 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：读入图片后按亮度公式 0.299R + 0.587G + 0.114B 转成灰度，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, converts it to grayscale with the luminance formula 0.299R + 0.587G + 0.114B, 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？Is anything uploaded?

不会，图片只在浏览器本地处理。No. Images are processed locally in your browser.

「WebP 转灰度」免费吗？需要注册吗？Is the Convert WebP to Grayscale free? Do I need an account?

「WebP 转灰度」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 Convert WebP to Grayscale is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.