How do I convert JPG to ICO?

Upload your JPG file above. It is converted to ICO automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting JPG to ICO lose quality?

Each icon size is scaled down from your image and stored without further compression, so small sizes stay crisp.

JPG or ICO: which should I use?

Use JPG for photos you share, email, print or upload. Use ICO for website favicons and Windows app or shortcut icons. Keep in mind the main drawback of ICO: icons are square and at most 256 × 256 pixels.

什么是 JPG 文件？

JPG is the standard format for photos. It shrinks files by discarding detail the eye barely notices, which suits photographs but blurs text and sharp edges.

What sizes does the ICO file include?

The standard icon sizes of 16, 32, 48, 64, 128 and 256 pixels, skipping any larger than your image. Browsers and Windows pick the best size automatically.

Is the JPG to ICO converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert JPG to ICO — Favicons and Windows Icons

Convert JPG to ICO online to make a favicon or Windows icon in several sizes. No software to install. Preview one free or batch-convert with Premium.

Drop your JPG file or click to browse

Why convert JPG to ICO?

One ICO bundles the standard 16 to 256 px icon sizes (up to the size of your image), ready for a favicon.ico or a Windows shortcut.
当您将 ICO 保存为 favicon.ico 时，浏览器会将其显示为您网站的标签页和书签图标。

What to expect when converting JPG to ICO

图标是正方形的，因此非正方形图片会居中放置在透明正方形上。不会生成比您的图片更大的尺寸，所以请从至少 256 × 256 像素的图片开始。
您原来的 JPG 文件不会被更改：您下载的是一份新的 ICO 副本。

JPG 与 ICO 对比

功能	JPG	ICO
全名	JPEG (Joint Photographic Experts Group)	Windows 图标
来源	1992 年标准化	Created by Microsoft for Windows icons
压缩	有损，质量可调	Lossless images at several sizes
透明度	否	Yes — smooth, partial transparency
动画	否	否
颜色	1670 万种颜色（每通道 8 位）	全彩并支持透明
可用什么打开	All browsers, phones, computers and photo apps	Browsers (as favicon.ico), Windows and icon editors
最适合	photos you share, email, print or upload	website favicons and Windows app or shortcut icons
主要缺点	no transparency, and every re-save loses a little more detail	icons are square and at most 256 × 256 pixels

In short: choose JPG for photos you share, email, print or upload; choose ICO for website favicons and Windows app or shortcut icons.

Frequently asked questions

How do I convert JPG to ICO?: Upload your JPG file above. It is converted to ICO automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting JPG to ICO lose quality?: Each icon size is scaled down from your image and stored without further compression, so small sizes stay crisp.
JPG or ICO: which should I use?: Use JPG for photos you share, email, print or upload. Use ICO for website favicons and Windows app or shortcut icons. Keep in mind the main drawback of ICO: icons are square and at most 256 × 256 pixels.
什么是 JPG 文件？: JPG is the standard format for photos. It shrinks files by discarding detail the eye barely notices, which suits photographs but blurs text and sharp edges.
What sizes does the ICO file include?: The standard icon sizes of 16, 32, 48, 64, 128 and 256 pixels, skipping any larger than your image. Browsers and Windows pick the best size automatically.
Is the JPG to ICO converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

使用 JPG 转 ICO 可以做什么

在开始之前查看主要功能。

Convert JPG files to ICO online
Bundle standard icon sizes from 16 to 256 px in one file
Switch to any other output format in Settings
Batch-convert many JPG files into one ZIP
Preview the result before you download

使用这个工具

设置参考

JPG 转 ICO 的可用控件。

设置

输出格式下拉框: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.选项: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
质量滑块范围: 20–100 · 默认: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
无损模式开／关: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景填充取色器: 适用于无法存储透明度的 JPG、BMP 和图片转 PDF 输出：用于填充透明区域的颜色（默认为白色）。