How to create your ICO file?
Upload your logo
Upload your logo in PNG or JPG format. We recommend using PNG with transparency for the best results.
Icon generation
We scale your image to 256x256 pixels and wrap it in the industry-standard ICO container.
Deploy your favicon
Download the resulting `favicon.ico` file and add it to the root of your website or software project.
Why a quality ICO?
Made for the web
Generate favicons compatible with all browsers and industry standards.
Secure conversion
All scaling and rendering happens locally, guaranteeing your asset never leaves your PC.
Full transparency
We keep the alpha channel of your original files so your icons look perfect.
High resolution
We create 256x256 ICO files, ensuring they look crisp even on 4K screens.
How to create a favicon .ico from an image
Upload your logo as PNG or JPG, click "Convert" and download the favicon.ico file. We scale it to 256x256 pixels and keep transparency, so the icon won't show a white box around it.
Converting an image to an icon is free and runs in your browser: your logo is never uploaded to any server.
What is an ICO file?
ICO is the Windows icon format: a container that can store the same image at several sizes and color depths inside a single file. It is the format browsers use for website favicons and Windows uses for program and folder icons.
Unlike a plain PNG, a well-built .ico includes several resolutions (16x16, 32x32, 48x48…) and each system picks the most suitable one. That is why converting to ICO is more than renaming the file: the container has to be generated with its sizes.
Recommended favicon sizes
A modern favicon usually includes 16x16 and 32x32 (browser tab), 48x48 (Windows) and 180x180 (Apple touch icon). An .ico file can hold several sizes at once. If you need the full size pack plus the HTML snippet, use the favicon generator.
How to add the favicon to your site
Save the file as favicon.ico in your site root and add this to the <head> of your HTML: <link rel="icon" href="/favicon.ico" type="image/x-icon">. Most browsers detect it automatically when it sits in the domain root.
Related tools
Frequently asked questions
What size is the generated ICO file?
Pictulab generates high-fidelity ICO files at 256x256 pixels. This size is the format's maximum standard, ensuring your icon looks crisp both as a small favicon (16x16) and in large desktop shortcuts.
Does it support real transparency?
Yes, if you upload a PNG image with transparency, the resulting ICO file will keep the transparent areas. This is essential so that favicons and icons don't have a white box around them and look professional.
How do I use the ICO file on my website?
You just need to download the file and save it as `favicon.ico`. Then, place this in the `head` of your HTML: `<link rel="icon" href="/favicon.ico" type="image/x-icon">`. Most modern browsers will detect it automatically if it's in the root.
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