ICO to SVG Converter
Convert ICO to SVG in your browser. The ICO's pixels are traced into vector paths, so the result scales cleanly and can be edited in a vector app. You get an SVG traced into vector paths (or, if you prefer, the pixels embedded in an SVG wrapper). Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
ICO expected · other image formats also work
How to use ICO to SVG
- 1
Add your ICO files: drop them here, choose them, or paste from the clipboard.
- 2
Choose how many colours to trace; fewer colours give simpler paths.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .svg files one at a time or together as a ZIP.
Why use Aback Images for ico to svg
Where the SVG goes next
SVG opens in every browser, Illustrator, Inkscape, Figma and most design tools.
SVG next to ICO
A traced SVG describes every patch of colour as a path: logos and flat art stay compact, while photographs turn into very large markup.
The first lossy pass
The ICO holds 1 to 32 bits per pixel, set per size with nothing discarded yet. This conversion is the first lossy encode these pixels see, and hard edges and flat colour show it first.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
ICO vs SVG
What changes from ICO to SVG
Encoding: the ICO uses each size stored as a headerless BMP or as a complete PNG; SVG uses XML text describing paths, shapes and text, sometimes gzipped as .svgz, and the download is an SVG traced into vector paths (or, if you prefer, the pixels embedded in an SVG wrapper).
Bit depth: 1 to 32 bits per pixel, set per size in the ICO; SVG allows not fixed: coordinates and colours are continuous values, and the SVG written here has vector paths with flat colours.
Colour: RGB or a palette, per image in the ICO; SVG supports sRGB by default, other spaces through CSS colour functions, written here as flat colour regions.
Transparency: the ICO stores it as 8-bit alpha in 32-bit and PNG entries, or a 1-bit mask in old icons; the SVG keeps it as opacity on any element, with anti-aliased edges.
Other images: the ICO can hold several sizes of the same picture, typically 16, 32, 48 and 256 px; only the main image is converted.
Metadata: the ICO can carry only a directory of the sizes inside, with no EXIF; SVG can carry title, description and RDF metadata elements, but nothing is copied across.
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.
ICO files usually come from website favicons, Windows programs and installers.
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.
When converting ICO to SVG makes sense
SVG is the better choice for logos, icons and illustrations, while ICO suits favicons and Windows icons.
SVG strengths: Infinitely scalable and sharp; Tiny files for logos and icons; Editable as text and styleable with CSS. Drawbacks to weigh: Not suitable for photographs; Can contain scripts, so untrusted SVG must be sanitized; Many apps and social sites will not accept it.
Limitations
- The largest image in the icon is the one converted; smaller sizes that were hand-tuned for 16 px are not carried over.
- Icons are small and hard-edged, so lossy encoders show ringing around the outline quickly.
- Tracing approximates the image with flat-colour shapes, so photographs become poster-like art rather than exact copies.
- Logos, icons and line art with clear edges trace best; raise the colour count for more detail.
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Frequently asked questions
Does converting ICO to SVG lose quality?
SVG is lossy, so detail the eye barely notices is discarded to save space. Not carried over: any several sizes of the same picture.
Is transparency kept in the SVG?
Yes. ICO stores it as 8-bit alpha in 32-bit and PNG entries, or a 1-bit mask in old icons, and the SVG is written with an alpha channel, so transparent areas stay transparent.
Is the SVG a real vector or just embedded pixels?
By default the image is traced into true vector paths, so it scales without pixelation and can be edited in Illustrator, Figma or Inkscape. You can switch to embedding the pixels inside an SVG wrapper if you need an exact copy.
Which apps open SVG files?
Every browser, Illustrator, Inkscape, Figma and most design tools.
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.