SVG to ICO
Convert SVG to ICO with a Free Favicon Generator
Create a multi-size Windows .ico file for website favicons, app icons, and desktop shortcuts. Choose a target size and the converter packs every standard size up to it into one file.
Editing defaults for new files
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What is SVG?
SVG (Scalable Vector Graphics) is an XML-based vector image format. Instead of pixels, an SVG describes shapes, paths, fills, and strokes mathematically, so it can be rendered at any size without losing quality.
SVG is the standard vector format for the web. It is supported natively by every modern browser and can be styled with CSS or animated with JavaScript or SMIL. It is often compact for logos, icons, and illustrations, although complex SVGs can become large.
What is ICO?
ICO is the Windows icon container format used for favicons, application icons, and desktop shortcuts. An ICO file can hold one or more raster images (typically 16×16 up to 256×256) inside a single file.
SVG vs raster formats
Vector graphics (SVG) and raster graphics (PNG, JPG) solve different problems. The right format depends on what the image will be used for.
| Feature | SVG | PNG / JPG | ICO / ICNS |
|---|---|---|---|
| Scaling | Resolution-independent | Blurry when enlarged | Pre-rendered at fixed sizes |
| File size | Small for shapes and icons | Grows with resolution | Bundle of pre-sized rasters |
| Editing | Editable as text or in vector tools | Pixel-level editing only | Edit each size, then repack |
| Animation | CSS, SMIL, JavaScript | Limited (animated PNG/GIF) | Not supported |
| Transparency | Yes | PNG yes, JPG no | Yes (PNG-based) |
When to convert SVG to ICO
Browsers and desktop shells use ICO files. Use this SVG to ICO converter as a free favicon generator: convert SVG to ICO when you need a favicon (favicon.ico), a Windows shortcut, or anywhere a .ico file is required. One file can hold the standard 16, 32, 48, 64, 128, and 256 pixel sizes, allowing the browser or operating system to choose the best match.
SVG to ICO: file size and quality trade-offs
File size
A multi-size ICO bundles every standard slot from 16×16 up to your target. Larger targets add more embedded images, so the file grows with both the number of slots and the detail in the artwork. This converter stores each slot as compressed PNG data.
When ICO is the right choice
ICO is the right output for Windows favicons (the favicon.ico at your site root), Windows desktop shortcuts, taskbar pins, and any context that specifically asks for a .ico file. Bundling several sizes lets the browser or operating system choose the best match.
When to serve an SVG favicon instead of ICO
Modern browsers accept <link rel='icon' type='image/svg+xml' href='/favicon.svg'>, so keep the SVG and serve it alongside the ICO. A single SVG favicon scales to every taskbar and tab size and stays crisp on high-DPI displays. The ICO covers Windows desktop shortcuts and very old browsers.
Quality trade-offs
Each ICO slot is rasterized at its exact pixel size, so a 16×16 slot is sharp at 16×16, but extreme down-scaling from a complex SVG can lose detail. For favicons, design the source SVG to read well at 16×16 (heavy strokes, few details). Transparency is preserved per pixel; backgrounds stay see-through unless you pick a solid color.
How to convert SVG to ICO online
- 1
Drop your files, or click SELECT FILES, to add them to the queue. Up to 40 at a time.
- 2
Set the output options (size, DPI, background, quality, or tracing detail) and watch the live preview update.
- 3
Click SAVE ALL to download the result, or a single ZIP when the queue holds more than one file.
Privacy: your files never leave your browser
Conversion runs locally in your browser using JavaScript and WebAssembly. There is no file upload or server-side conversion, so the files you add stay on your device.
Local processing helps protect confidential logos, internal documents, and unreleased client artwork. Pages and conversion code are cached as you use them, so tools you have already opened can continue working without a network connection.
Frequently asked questions
What sizes does the ICO contain?
The converter packs every standard ICO slot up to your target size into a single file: 16, 32, 48, 64, 128, 256. Most browsers and Windows tools pick the right size automatically based on context.
What size should I pick for a favicon?
32 is a safe default for browser tabs and bookmarks. Pick 256 if you want every standard size bundled. Windows will use the largest for shortcuts, taskbar pins, and desktop icons.
Can I use a transparent background in an ICO?
Yes. ICO supports per-pixel alpha and the converter preserves transparency from the SVG by default. Pick a solid background color only if you want to fill the see-through areas.