UltKit

ICO to SVG Converter

Put a Windows icon or favicon into an .svg file for tools that only take SVG. The icon's pixels stay pixels, so this page also shows how to get real vector paths or simply a bigger PNG.

Image Converter

or drop JPG, JPEG, JPE … files here ·

Max 95 MB per file· Up to 20 files· Deleted after 30 minutes

Output

Files are processed on our servers and deleted after 30 minutes.

How to use this tool

  1. 1

    Upload the .ico file

    A favicon.ico from a website or an icon from a Windows program. Up to 20 files per batch.

  2. 2

    Press Convert to SVG

    The largest image stored in the ICO is placed inside an SVG document with its transparency intact.

  3. 3

    Decide what you need next

    Use the SVG as is, trace it for scalable paths, or extract a PNG if you only wanted the picture.

Answer

Does converting ICO to SVG make the icon scalable?

No. An ICO holds bitmaps only, so the SVG wraps the largest of them, pixels and transparency included. For an icon that stays sharp at any size, trace it; for a bigger picture file, extract a PNG.

This page

Wrapped SVG

The ICO's largest bitmap inside an .svg file.

  • Looks exactly like the icon
  • Transparency kept
  • Blurs when enlarged
Best for: Uploads that only accept the .svg extension
Tracing

Traced SVG

Edges turned into vector paths by image to SVG.

  • Scales to any size
  • Editable colors and shapes
  • Small details may simplify
Best for: Logos, cutting machines, print
Extract

PNG from ICO

The largest icon image saved as PNG.

  • Opens everywhere
  • Lossless and transparent
  • Fixed pixel size
Best for: Documents, slides and editors

ICO to SVG: a wrapper around pixels, not a vector

The ICO format dates back to Windows 1.0 in 1985 and became the favicon format when Internet Explorer 5 started looking for /favicon.ico in 1999. One file holds several square bitmaps so Windows and browsers can pick the size that fits: 16 px for a browser tab, 32 or 48 px for the taskbar and desktop, and, since Windows Vista, 256 px images stored as compressed PNG data. Nowhere in that structure is there a path, a curve or a fill.

SVG, a W3C format since 2001, can hold both kinds of content: vector shapes and embedded bitmaps. When an ICO is converted, the only honest output is the second kind. The SVG gets the icon's width and height and one image element with the pixels, so it renders exactly like the ICO in a browser, Figma or a slide. Zoom in and you see the same pixels, because nothing was redrawn.

Icon sizes inside an ICO, and why the largest one matters

1:1

16 × 16 px

Browser tab favicon

Too small to trace well

1:1

32 × 32 px

High-density tab, taskbar

Common top size of favicon.ico

1:1

48 × 48 px

Desktop icon (Windows)

Present in most program icons

1:1

256 × 256 px

Large icons view

Best source for tracing or a PNG

ICO

Windows icon

ICO is the Microsoft icon format used for Windows program icons and website favicons. One .ico file can contain several images at different sizes, such as 16×16, 32×32, 48×48 and 256×256 pixels, so the system can pick the best fit. Each image can be stored as a bitmap or as PNG data and supports full alpha transparency. ICO is not meant for photos or large artwork. Browsers, Windows and most icon editors can read it.

Compression
Lossless
Transparency
Yes
Animation
No
Introduced
Microsoft
ICO converter

SVG

Scalable Vector Graphics

SVG is an XML-based vector format standardised by the W3C in 2001. Instead of pixels it describes shapes, paths and text, so it stays sharp at any size and is usually tiny for logos and icons. It supports transparency, CSS styling, scripting and animation, and every browser renders it natively. SVG is unsuitable for photographs, and complex illustrations can become slow to render. Illustrator, Inkscape, Figma and browsers can open and edit it.

Compression
–
Transparency
Yes
Animation
Yes
Introduced
2001 · W3C
SVG converter

People search for ICO to SVG when a design tool, an icon library or a website template asks for SVG and the only copy of a logo is a favicon or a Windows icon; it is usually the first step toward a traced vector.

Tracing an icon into real SVG paths

If the goal is a logo that scales, the wrapped SVG is a stepping stone at best. Run the icon through the image to SVG converter: it follows color edges and writes them as paths you can resize, recolor and cut. Results depend on the source size, so a 256 px image from a program icon traces far better than a 16 px favicon. Our walkthrough on converting PNG to SVG covers how many colors to keep and how to smooth the curves.

If you only wanted to use the icon in a document or editor, skip SVG entirely and take the largest image as a PNG with ICO to PNG. Going the other way, from a vector logo to a multi-size favicon, is what SVG to ICO is for.

ICO to SVG questions

Can an ICO file become a true vector SVG?

Not by conversion alone. An ICO stores nothing but bitmaps, from 16 × 16 up to 256 × 256 px, so there are no shapes to carry over. Real paths have to be traced from the pixels, which the image to SVG converter does.

Which of the sizes inside my .ico ends up in the SVG?

The largest one, because it holds the most detail. A typical favicon.ico tops out at 32 or 48 px, while a Windows application icon usually includes a 256 px version.

Will the wrapped SVG work as a website favicon?

Chrome and Firefox accept SVG favicons, but an SVG that only contains a 32 px bitmap gains nothing over the ICO you started with. An SVG favicon is worth it when it holds real paths that stay crisp on high-density screens.

Why does tracing a favicon give blobby shapes?

A 32 px icon has only 1,024 pixels, and tracing guesses curves from their edges. The fewer pixels, the rougher the guess. Trace the 256 px image from a Windows icon, or find the original logo, for clean outlines.

Is the icon's transparent background kept?

Yes. ICO images carry an alpha channel, and the SVG keeps it, so the icon sits on whatever background the page or design tool provides.

Can I recolor the icon in Inkscape or Figma afterwards?

Not shape by shape, because the SVG holds one embedded picture. You can apply filters or overlays to it as a whole; for per-shape colors, trace it first.