Great Scott Labs

ICO to PNG Extractor

Open a Windows .ico and save any size inside it as a PNG. It runs entirely in your browser, so the file never leaves your computer.

Runs on your device Nothing is uploaded · works offline once loaded Open in new tab ↗
One file, and it is the whole program. The download is an .html file that opens in your browser — save it somewhere you’ll find it again and it keeps working with no internet, forever. Download this tool ↓

Getting a picture back out of an icon

An icon file is a container, not an image. Opening one in an ordinary picture viewer usually gets you a shrug, or one arbitrary size out of the several inside.

This opens the container and lays out everything in it, each on a transparency checkerboard so you can see exactly which parts are see-through. Save the size you want as a PNG, or take the whole set as a zip.

The part that was actually hard

Icons store their images two completely different ways. Modern ones embed PNGs. Older ones use the classic DIB/BMP layout — 32-bit, 24-bit, 16-bit, and palettised 8, 4 and 1-bit variants, each with a separate AND mask describing transparency.

Plenty of extractors handle the modern kind and fall over on the old one, which is a problem when the icons you actually need to open are old. This reads both. The 32-bit DIB path was pixel-verified against a hand-built test file rather than assumed.

The other direction

If you want to go the other way, the Image to ICO Converter builds a Windows icon with every standard size packed into one file. The two tools are a matched pair and neither uploads anything.

Questions

Common questions

What does this tool do?

It opens a Windows .ico icon file and shows every image packed inside it, so you can save any of them as a normal PNG — or save them all at once.

How do I use it?

Drop an .ico file onto the page. It displays each image stored inside, on a checkerboard so you can see transparency. Click any one to save it as a PNG, or use Save All to get them all in a zip.

Why are there several images in one .ico?

A single .ico usually packs several sizes together (like 16, 32, 48, and 256 pixels) so Windows can pick the right one for each place it shows the icon. This tool lets you pull out whichever size you need.

Does it keep transparency?

Yes. Transparent areas of the icon are preserved in the saved PNG, shown against a checkerboard so you can see exactly what's transparent.

What does 'Save all' do?

It packages every image inside the .ico into a single zip file you can download in one click, instead of saving each size one at a time.

Is my file private?

Yes. Everything happens on your own computer in the browser — the .ico is never uploaded anywhere.

How do I make an .ico in the first place?

Use the companion Image to ICO Converter — it turns a PNG or JPG into a Windows .ico with all the standard sizes built in.

Our own software

Dictate it instead of typing it

Hold a key, say the sentence, and the words land in whatever Windows window you were already in. Runs on your own PC — no account, no upload, nothing to renew.

$79 launch price · $99 regular · buy once
See Lickety

Our own software

The photo app that finds the picture

Search thirty thousand photos by what is actually in them rather than by filename, and open the formats a browser cannot — HEIC from a phone among them. Same rules as everything here: it runs on your own machine and you buy it once.

In build · tell us where to send the release note
Tell me when it’s ready
All 45 tools, offline, in one app. A signed Windows install with a Start-menu icon and no browser needed. A few dollars, once. The web versions stay free.
See the offline bundle