SVG to ICO Converter
Convert SVG to ICO in your browser. The SVG is sanitized and rendered at the pixel size you choose, so it is sharp at any resolution you ask for. You get a multi-size ICO with PNG-compressed icons (16, 32, 48 and 256 px by default). Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
SVG expected · other image formats also work
How to use SVG to ICO
- 1
Add your SVG files: drop them here, choose them, or paste from the clipboard.
- 2
Choose the icon sizes to include.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .ico files one at a time or together as a ZIP.
Why use Aback Images for svg to ico
Where the ICO goes next
ICO opens in every browser (as a favicon), Windows and most Linux desktops.
ICO next to SVG
Rasterising turns a description of shapes into stored pixels, so the ICO is usually larger than a small SVG, and grows with the size you render at.
Written without a lossy pass
The ICO is written losslessly, so the pixels decoded from the SVG arrive unchanged.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
SVG vs ICO
What changes from SVG to ICO
Encoding: the SVG uses XML text describing paths, shapes and text, sometimes gzipped as .svgz; ICO uses each size stored as a headerless BMP or as a complete PNG, and the download is a multi-size ICO with PNG-compressed icons (16, 32, 48 and 256 px by default).
Bit depth: not fixed: coordinates and colours are continuous values in the SVG; ICO allows 1 to 32 bits per pixel, set per size, and the ICO written here has 32 bits per pixel.
Colour: sRGB by default, other spaces through CSS colour functions in the SVG; ICO supports RGB or a palette, per image, written here as 8-bit sRGB.
Transparency: the SVG stores it as opacity on any element, with anti-aliased edges; the ICO keeps it as 8-bit alpha in 32-bit and PNG entries, or a 1-bit mask in old icons.
Animation: SMIL or CSS animation described in the markup; a single still rendering is converted.
Metadata: the SVG can carry title, description and RDF metadata elements; ICO can carry only a directory of the sizes inside, with no EXIF, but nothing is copied across.
About SVG
SVG describes shapes, paths and text as XML instead of pixels, so it stays crisp at any size. It is the standard for logos, icons and illustrations on the web.
An SVG is an XML document: a root <svg> element with a viewBox, then paths, shapes, text, gradients and filters. It can also embed raster images and, dangerously, scripts, which is why untrusted SVG is sanitized before rendering here.
SVG files usually come from icon sets, logos, design tools (Figma, Illustrator, Inkscape) and diagram exports.
About ICO
ICO is a container that bundles several sizes of the same icon (16, 32, 48, 256 px) into one file. It is still the most compatible format for website favicons and Windows app icons.
An ICO starts with a 6-byte ICONDIR (type 1 for icons) and a 16-byte entry per image giving width, height, colour count and offset. Each image is either a BMP without its file header plus an AND mask, or a complete PNG.
When converting SVG to ICO makes sense
ICO is the better choice for favicons and Windows icons, while SVG suits logos, icons and illustrations.
ICO strengths: Multiple sizes in one file; Required by Windows and supported by every browser as a favicon. Drawbacks to weigh: Max 256×256 per image; Not for photos.
Limitations
- Rasterising fixes the picture at one pixel size; set a larger size under More options if you need to print or zoom.
- Text that was not converted to outlines is drawn with the fonts on this device, so lettering can look different from the designer's screen.
- Each size inside the ICO is scaled from your image, and detailed artwork loses legibility at 16 and 32 px, so simplify logos first.
- Non-square images are centred on a transparent square for each icon size.
More conversions
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Strip EXIF, GPS, XMP, IPTC and comments losslessly. Pixels are never re-encoded for JPG, PNG and WebP.
Frequently asked questions
Does converting SVG to ICO lose quality?
ICO is written losslessly, so the pixels are stored exactly as decoded.
What resolution will the output be?
SVG has no fixed pixel size, so it is rendered at its declared width and height. Use the resize options to render it larger: because it is vector, an SVG stays perfectly sharp at any size you choose here. Files are sanitized first, so scripts and external references never run.
Which icon sizes are included?
16, 32, 48 and 256 px by default, the set Windows and browsers expect. You can choose other sizes. Non-square images are centred on a transparent square.
Which apps open ICO files?
Every browser (as a favicon), Windows and most Linux desktops.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.