ICO Converter
Convert ICO image files to PNG, JPG, WebP, TIFF, AVIF and GIF and 7 more formats — free, in batches, files up to 10 GB, with no sign-up and no watermark.
Drop your ICO file
Choose the format you need
Download the result
Choose file
or drag & drop — image files
Free · Unlimited · No sign-up · Max 10 GB
Your privacy is our mission. Most files are converted right in your browser and never leave your device. Only large files, or formats a browser cannot process, are sent to our server over an encrypted connection — they are never stored, never shared, and deleted as soon as your download is ready.
What Is an ICO File?
ICO is the icon format of Windows and the classic format of website favicons. One file can hold the same icon at several sizes so the system picks the sharpest one. ICO is lossless: it stores the image without discarding anything, at the price of larger files.
ICO Facts
| Full name | Windows Icon |
|---|---|
| File extension | .ico |
| Type | Image |
| How it stores data | One or more small bitmaps in one file |
| Created by | Microsoft |
| Best for | favicons and Windows application icons |
| Watch out | small sizes only — it is not a general image format |
| Opens with | Windows, every browser (as a favicon), most image editors |
How to Open an ICO File
A .ico file opens with Windows, every browser (as a favicon), most image editors. If none of those is at hand — or the file has to go into a program, device or website that refuses ICO — convert it: PNG, JPG and WebP are the usual choices.
Convert ICO to Another Format
Convert Other Formats to ICO
Frequently Asked Questions
What is an ICO file?
ICO is the icon format of Windows and the classic format of website favicons. One file can hold the same icon at several sizes so the system picks the sharpest one.
How do I open a .ico file?
With Windows, every browser (as a favicon), most image editors. If your device or program does not accept it, convert the file to a format it does.
How do I convert an ICO file?
Drop the file into the converter on this page, choose the target format — PNG, JPG, WebP, TIFF and AVIF and others — and press Convert. It is free, there is no account and several files can be converted at once.
Is ICO lossy or lossless?
ICO is lossless: it stores the image without discarding anything, at the price of larger files.
What is ICO good for, and what are its limits?
Best for: favicons and Windows application icons. Watch out: small sizes only — it is not a general image format.
Is the ICO converter free, and how big can the files be?
It is free, with no account, no watermark and no daily limit. Files can be up to 10 GB each.
Which formats can be converted to ICO?
JPG, PNG, WebP, GIF, TIFF, BMP, SVG, AVIF and HEIC.