ICO vs SVG: Which Should You Use?

Side-by-side comparison of ICO and SVG image formats — features, pros, cons, and conversion options.

Quick Answer

ICO is best for Website favicons and Windows application icons. SVG is best for Logos, icons, illustrations, and responsive web graphics.

Quick Verdict

ICO Best for Website favicons and Windows application icons

✓ Multiple sizes in one file
✓ Transparency support
✓ Required for website favicons
✗ Limited to small sizes

SVG Best for Logos, icons, illustrations, and responsive web graphics

✓ Infinitely scalable
✓ Editable as text/XML
✓ Small file size for simple graphics
✗ Not suitable for photos

Convert SVG to ICO →

Specs Comparison

Side-by-side technical comparison of ICO and SVG

Feature	ICO	SVG
Category	Image	Image
Year Introduced	1985	2001
MIME Type	image/x-icon	image/svg+xml
Extensions	.ico	.svg
Lossy	✗	✗
Lossless	✓	✓
Transparency	✓	✓
Animation	✗	✓
Max Color Depth	32-bit	32-bit
Hdr	✗	✗

Pros & Cons

ICO

Pros

✓ Multiple sizes in one file
✓ Transparency support
✓ Required for website favicons

Cons

✗ Limited to small sizes
✗ Windows-centric
✗ Outdated for modern web (use PNG/SVG)

SVG

Pros

✓ Infinitely scalable
✓ Editable as text/XML
✓ Small file size for simple graphics

Cons

✗ Not suitable for photos
✗ Complex SVGs can be slow
✗ Security concerns with embedded scripts

When to Use Each

Choose ICO when...

You need files optimized for Website favicons and Windows application icons
Multiple sizes in one file
Transparency support
You need lossless quality

Choose SVG when...

You need files optimized for Logos, icons, illustrations, and responsive web graphics
Infinitely scalable
Editable as text/XML
You need lossless quality

How to Convert

Convert between ICO and SVG for free on ChangeThisFile

Convert SVG to ICO Runs in your browser — files never leave your device

Frequently Asked Questions

What's the difference between ICO and SVG?

ICO is best for Website favicons and Windows application icons, while SVG is best for Logos, icons, illustrations, and responsive web graphics. Both are image formats but they differ in compression, compatibility, and intended use cases.

Is ICO or SVG better for image?

It depends on your use case. ICO is better for Website favicons and Windows application icons. SVG is better for Logos, icons, illustrations, and responsive web graphics. Consider your specific requirements when choosing between them.

How do I convert ICO to SVG?

Direct conversion from ICO to SVG is not currently available on ChangeThisFile. You may need to use an intermediate format.

Can I convert SVG to ICO?

Yes. ChangeThisFile supports SVG to ICO conversion. The conversion runs in your browser with no upload required.

Which is smaller, ICO or SVG?

File size depends on the content and compression settings. ICO preserves full quality. SVG preserves full quality. For the smallest files, choose the format with lossy compression that meets your quality needs.

Does ICO support animation?

No, ICO does not support animation, whereas SVG does. This may be an important factor depending on your use case.

Is ICO or SVG free to use?

Both ICO and SVG are supported file formats that are free to use. You can convert between them for free on ChangeThisFile — browser-based conversions have no limits and your files never leave your device.

Which format is newer, ICO or SVG?

SVG is newer — it was introduced in 2001, while ICO dates back to 1985. Newer formats often offer better compression and features, but older formats tend to have wider compatibility.