ICO Converter
Convert any image to a favicon.ico online. Get a multi-size icon (16, 32, 48 px) plus a full favicon set, all built in your browser.
Drop an image to make a favicon
Drag & drop, paste, or pick a file
PNG · JPG · WebP · SVG — icons built on your device
A simple, multi-size ICO converter
An .ico file bundles multiple resolutions so a single favicon works everywhere. This converter takes a PNG, JPG, WebP, or SVG and writes a favicon.ico containing 16, 32, and 48 px, right in your browser — no desktop software needed.
Because the format also matters for sharing the whole favicon set, the zip includes PNG icons up to 512 px, an apple-touch-icon, Android icons, and a site.webmanifest alongside the .ico.
How to make a favicon.ico
- Add an image — drag & drop, paste, or pick a PNG, JPG, WebP, or SVG.
- Choose the background — transparent for tabs, or a solid color for a filled icon.
- Add padding if needed — a small margin keeps art clear of rounded corners.
- Download — the favicon.ico and the rest of the set come in one zip.
Tip: one .ico, every browser
Place favicon.ico at the root of your domain and reference it with a single link tag. Older browsers find it automatically; modern ones use the PNG and manifest icons you also get here.
favicon.ico: sizes and where each is used
The .ico format bundles multiple resolutions so a single favicon works everywhere, from Internet Explorer to the latest Chrome. Any image you convert is written into one favicon.ico containing these sizes:
| Size | File | Where it's used |
|---|---|---|
| 16 × 16 px | inside favicon.ico | The everyday tab and address-bar icon at 1× density. |
| 32 × 32 px | inside favicon.ico | The Retina tab and bookmark icon, and the Windows shortcut. |
| 48 × 48 px | inside favicon.ico | The bigger entry desktop and Windows contexts can select. |
Format & container
A real ICONDIR header points to each PNG-encoded size, so the browser reads one file and chooses the crispest resolution for the context — no separate small and large files required for legacy support.
How it's wired into your page
<link rel="icon" href="/favicon.ico" sizes="any">
<!-- place favicon.ico at the domain root; older browsers find it on their own -->
Tip
Drop favicon.ico at the root of your domain (e.g. example.com/favicon.ico): browsers request that path by default even without a link tag, which is why the legacy fallback still works.
All favicon & icon tools
Frequently asked questions
What is an .ico file?
It's an icon container that can store several image sizes in one file. Favicons use it so browsers can choose the right resolution for tabs, bookmarks, and the address bar.
Which sizes go into the .ico?
This converter writes 16, 32, and 48 px into the favicon.ico — the standard set browsers select from.
Where is the file created?
On your own device, in the browser. How any data associated with the tool is handled is described in our privacy policy.
Can I also get PNG and Apple icons?
Yes — the download includes PNG favicons, an apple-touch-icon, Android icons, and a web manifest in addition to the .ico.
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