ICO converter

What is ICO?

ICO is the Windows icon container, and the format browsers still expect for a favicon. One .ico holds the same picture at several sizes, so the system can pick the right one for a tab, a taskbar, or the desktop. Building one means resizing a source image to those standard sizes and packing them together.

Convert another format to ICO

• PNG to ICO
• JPG to ICO

Common questions about ICO

What is an ICO file?

ICO is the Windows icon format, used most often for website favicons (the small image in a browser tab) and app icons. A single .ico can bundle several sizes of the same image so the system can pick the right one. It's a delivery format for icons rather than a general-purpose image format you'd edit or photograph with.

How do I make a favicon (ICO) from an image?

hushvert converts PNG and JPG into ICO. Drop your image in, choose ICO, and it resizes your picture to the standard icon sizes and packs them into one multi-size .ico, all in your browser with no upload. A square image gives the cleanest result, since icons are square.

Should I use a PNG or a JPG to create my favicon?

PNG is usually the better source because it supports transparency, so your favicon can have rounded or non-rectangular shapes without a solid background. JPG works too, but it has no transparency and is lossy, so flat logos and icons look crisper coming from a PNG. hushvert accepts either.

Can I convert an ICO into another format?

Not on hushvert. ICO is an output-only format here: we create favicons from PNG and JPG, but we don't convert an existing .ico back into other image formats. If you need a regular image, start from the original PNG or JPG you made the icon from.

Does creating an ICO upload my image?

No. The PNG-to-ICO and JPG-to-ICO conversions run entirely in your browser through WebAssembly, so your source image never leaves your device. You can verify it in airplane mode or the Network tab, or on our /privacy-proof page.