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图片转 ICOImage to ICO

将图片转换为ICO图标格式Convert images to ICO icon format.

提示：将生成包含 16x16、32x32、48x48 三种尺寸的标准 ICO 文件，可直接用作网站 favicon。

关于 图片转 ICOAbout Image to ICO

ICO 是网站 favicon 与 Windows 程序图标的传统格式。本工具将 PNG/JPG 图片转换为 ICO，支持 16/32/48 等常见尺寸打包，帮你快速生成浏览器标签页图标，无需任何设计软件。ICO is the traditional format for website favicons and Windows program icons. This tool converts PNG/JPG images to ICO, packing common sizes like 16/32/48, so you can produce a browser-tab icon quickly without any design software.

使用方法How to Use

  1. 上传一张尽量方正的图片作为图标源。Upload an image that is as square as possible.
  2. 选择需要包含的图标尺寸（16/32/48 等）。Select the icon sizes to include (16/32/48, etc.).
  3. 点击转换生成 ICO 文件。Click convert to generate the ICO file.
  4. 下载后放到网站根目录或在页面中引用即可。Download it and place it at your site root or reference it in your pages.

常见问题FAQ

为什么我的 favicon 看起来模糊？Why does my favicon look blurry?

请准备 32px 以上、主体居中的方形源图，并在 ICO 中包含多个尺寸，让浏览器按场景挑选最合适的版本。Use a square source image of at least 32px with a centred subject, and pack multiple sizes into the ICO so the browser can pick the best one per context.

现在浏览器不是支持 PNG favicon 吗？Do browsers not support PNG favicons now?

现代浏览器确实支持 PNG/SVG favicon，但 ICO 对旧系统与 Windows 资源管理器的兼容性最好，二者同时提供是最稳妥的方案。Modern browsers do support PNG/SVG favicons, but ICO remains the most compatible choice for older systems and Windows Explorer; providing both is the safest setup.

源图必须是正方形吗？Must the source be square?

强烈建议。非正方形图片缩放后可能变形或被裁切，影响小尺寸下的识别度。Strongly recommended. Non-square images may distort or be cropped when scaled, hurting legibility at small sizes.

相关阅读Related Reading

网页图片格式怎么选：JPG、PNG、WebP 使用与压缩实践Choosing Web Image Formats: JPG, PNG, WebP and Compression in Practice

图片通常占网页体积的一半以上。本文对比三大格式的特点与适用场景，给出选型决策路径与压缩参数建议，帮你把页面加载速度提一个档次。Images typically account for over half of a page’s weight. This article compares the three major formats, offers a decision path and compression settings, and helps you move your page load time up a class.

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