Convert ICO to PNG Online
Turn your ICO file into PNG in a couple of clicks — processed fully on your own device, with the option to switch to a different output format if you change your mind.
Your files stay on your device — 100% client-side processing
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Drag ICO files here
or click to browse · multiple files supported
Accepts .ico · converts to JPG, PNG, WEBP, AVIF, PDF or TIFF
What is a ICO file?
An .ico file is a Windows icon or favicon container — it can bundle several sizes and color depths of the same image in one file. That container format isn't something you can open like a normal photo in most image viewers or editors.
Why convert ICO to PNG?
The main reason is lossless quality and transparency support. PNG is a lossless raster format that preserves transparency — nothing is recompressed away, so it's the safer choice whenever you might need to re-edit the image later or need a see-through background.
How to convert ICO to PNG
Drag your ICO file(s) into the box below, or click it to browse. PNG is already selected as the output format, so all you need to do is press Convert and then Download once it finishes — usually within a second or two per file.
ICO vs PNG
An . PNG is a lossless raster format that preserves transparency — nothing is recompressed away, so it's the safer choice whenever you might need to re-edit the image later or need a see-through background.
Is the conversion done in my browser?
Yes. Reading the ICO and encoding the PNG output both happen locally on your device — nothing is uploaded to a server at any point.
Prefer a different output? The same engine on this page can also export to JPG, WEBP, AVIF, ICO, PDF, TIFF — just pick a different format from the dropdown next to your file once it's added, or use the full ICO converter.
ICO, in plain terms
The ICO format dates back to Windows 1.0 in 1985, originally a fixed 32×32 monochrome icon. Windows 3.0 added 16-colour support, and Windows 95/NT 4.0 introduced true-colour icons up to 256×256 — though at that size, an uncompressed 32-bit frame runs to around a quarter of a megabyte, which made large icons impractical for years. Windows XP added 8-bit alpha transparency for smooth drop shadows and anti-aliasing. Windows Vista, in 2006, solved the size problem by letting individual entries store a complete PNG image instead of raw bitmap data — which is how modern 256×256 icons stay small. An .ico file isn't one image; it's a small container that can bundle several sizes and colour depths side by side, so an operating system (or browser tab) can pick whichever one fits.
Why this converter doesn't need a special decoder
Every major browser engine has been able to decode ICO files for a very long time — it's exactly what makes a favicon show up in a browser tab in the first place, and that same decoding capability is available to canvas-based image tools, not just the <link rel="icon"> tag. So this converter loads your .ico file straight into the browser's own image pipeline, the same way the HEIC and WebP converters use native support where it exists.
| Capability | Support |
|---|---|
| Decoding an .ico file (this tool) | Chrome, Firefox, Safari, Edge — via the browser's built-in image decoding |
| Choosing which embedded size gets decoded | Not controllable — the browser picks automatically, usually the largest |
| Encoding to AVIF (this tool) | Depends on browser — detected automatically, with a clear error if unavailable |
Good to know before you convert
Multi-size .ico files are decoded the same way a browser tab loads a favicon — automatically, usually favouring the largest available image. There's no manual size picker here.
CUR shares almost the same binary format as ICO but is flagged differently and carries cursor hotspot data. This tool only accepts .ico.
Neither format supports an alpha channel, so any transparent area in the icon is filled with a solid background once converted.
That's a real limitation of the browser-side TIFF encoder we use, not a hidden setting — expect a larger file than you might assume.
Your files never leave your device
Your browser decodes the ICO file natively, and re-encoding into JPG, PNG, WEBP, AVIF, PDF, or TIFF happens locally too. There's no upload step and nothing is retained after you close the tab.
Frequently asked questions
How do I convert ICO to PNG?
Drop your ICO file file(s) onto the page (or click to browse), make sure PNG is selected as the target format, then press Convert. The download starts as soon as it's ready.
Is converting ICO to PNG free?
Yes, completely free, with no watermark, no sign-up, and no limit on how many files you convert.
Do I need any special software to convert an ICO file?
No. Your browser already knows how to decode ICO files — it's exactly what lets a favicon show up in a browser tab in the first place. This tool uses that same built-in decoding, no app required.
Are my ICO files uploaded anywhere?
No. The entire conversion — reading the ICO and re-encoding it as PNG — happens locally in your browser. Nothing is sent to a server.
Can I convert multiple ICO files to PNG at once?
Yes. Drop in as many files as you like; each one converts independently, and you can download them all at once as a ZIP.
Can I use this ICO to PNG converter on mobile?
Yes. It's a normal web page with no app to install — it works in any modern mobile browser, though very large files may convert more slowly on a phone.
More ICO conversions
Same engine, different default output — pick whichever you need.