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Convert PNG to ICO Online

PNG is a common format worth converting when a tool like this doesn’t accept it directly. Converting to ICO happens instantly, right in your browser. The output is a single-size icon file — ideal for favicons or small app icons, not a general photo format.

100% Private — Processing happens locally inside your browser. No files are ever uploaded.

Why Convert PNG to ICO

PNGs are common from screenshots, design exports, and downloaded graphics — great for editing, but often larger and less convenient than needed for a final upload. Converting to ICO gets you a properly formatted icon file for a website or app — done instantly, for free, without installing anything or creating an account.

PNG vs ICO: Technical Specs

Quick verdict: Pick PNG for logos, screenshots, graphics needing transparency, ICO for favicons, Windows application icons.

PNG
ICO
Full name
Portable Network Graphics
Icon File
Extension
.png
.ico
MIME type
image/png
image/x-icon
Compression
Lossless
Lossless (often PNG-based)
Transparency
Yes
Yes
Color depth
Up to 48-bit + alpha
Up to 32-bit
Typical use
Logos, screenshots, graphics needing transparency
Favicons, Windows application icons
Browser support
Universal
Universal for favicons

How It Works & Privacy Guarantee

Converting your PNG file to ICO happens in three steps, entirely on your device: your browser reads the PNG file into memory, decodes and re-encodes it as ICO using built-in browser technology (Canvas and WebAssembly), and hands you the finished file as a direct download.

At no point does the file get sent to a server. There’s no upload step to intercept, no account that could be breached, and nothing stored after you close the tab — the conversion simply couldn’t leak your file even if something went wrong, because it never left your browser in the first place.

PNG to ICO FAQ

What should I know about converting to ICO?

The output is a single-size icon file — ideal for favicons or small app icons, not a general photo format.

Will converting PNG to ICO reduce quality?

We decode the original PNG data and re-encode it at high quality, so any difference is minimal to the eye for normal use.

How do I convert PNG to ICO for free?

Drop your PNG file into the box above and press Convert — the ICO download is ready in seconds, with no account, no watermark, and no limit on how many files you convert.

Can I convert multiple PNG files to ICO at once?

Yes — drop in as many files as you need, convert them all in one go, and download everything together as a single ZIP instead of clicking download on each file individually.

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