🖼️ 给 WebP 加边框Add WebP Border
在 WebP 四周加纯色边框，原图的透明部分保持透明（导出带透明通道的 WebP）。本地处理。Add a solid-colour border around a WebP; transparent parts of the image stay transparent (exported as WebP with alpha). Processed locally.
使用说明与常见问题How-to & FAQ
「给 WebP 加边框」是什么？What is the Add WebP Border tool?
在 WebP 四周加纯色边框，原图的透明部分保持透明（导出带透明通道的 WebP）。本地处理。Add a solid-colour border around a WebP; transparent parts of the image stay transparent (exported as WebP with alpha). Processed locally.
如何使用「给 WebP 加边框」？How do I use the Add WebP Border tool?
在「给 WebP 加边框」中，选择或拖入文件，按需设置「边框宽度」、「边框色」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 Add WebP Border: Choose or drop your files, set "Border width", "Border colour", 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 WebP only?
本页面向 WebP 工作流；需要 PNG/JPG 请用对应的通用图片工具。This page targets a WebP workflow; use the general image tools for PNG/JPG.
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.
透明的 WebP 加边框后还透明吗？Does a transparent WebP stay transparent?
是的。只有新加的边框是不透明的所选颜色，原图里透明和半透明的部分保持原样，导出的 WebP 带透明通道。边框宽度可设 0–500 像素，0 表示不加边框。Yes. Only the new border is painted in the chosen opaque colour; transparent and semi-transparent parts of the image stay as they were, and the exported WebP keeps its alpha channel. The border width can be 0 to 500 px, where 0 adds no border.
有哪些选项可以调整？What options can I adjust?
「给 WebP 加边框」的设置：「边框宽度」默认 8，范围 0–500；「边框色」默认 #000000；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 Add WebP Border — "Border width" default 8, range 0–500; "Border colour" default #000000; files: common image formats (including HEIC, HEIF, AVIF, WEBP, BMP, JFIF). The result always uses the current settings.
「给 WebP 加边框」免费吗？需要注册吗？Is the Add WebP Border free? Do I need an account?
「给 WebP 加边框」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 Add WebP Border is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.