← Back to Tools

PNG to ICO Converter

Convert PNG images to ICO files with multiple icon sizes. Perfect for favicons and Windows icons.

Drop images here, browse, or paste

PNG, JPG, WebP, AVIF, BMP, GIF, TIFF, SVG, HEIC — any mix

⌘V to paste from clipboard

How to Use Your ICO File

As a Favicon

Place the favicon.ico file in your website's root directory. Most browsers will automatically find it.

<link rel="icon" href="/favicon.ico">

As a Windows Icon

ICO files can be used for Windows shortcuts, application icons, and folder icons. Right-click any shortcut → Properties → Change Icon.

Need more icon options?

Check out our Favicon Generator for a complete set of icons including Apple Touch Icons, Android Chrome icons, and web manifest files.

Try Favicon Generator

How to Convert PNG to ICO

Converting PNG files to ICO is quick and easy with our free browser-based tool:

  1. 1

    Upload your PNG file — drag it into the upload area or click to browse your files. Use a square PNG for best results.

  2. 2

    Click Convert — multiple icon sizes are generated automatically.

  3. 3

    Download your ICO — save the multi-size icon file ready for use as a favicon or Windows icon.

Creating Favicons and Windows Icons

ICO files are required for browser favicons (the small icon in browser tabs) and Windows application icons. A good favicon should be simple, recognizable at 16x16 pixels, and use high contrast. Start with a square PNG — ideally 256x256 or larger — with a transparent background. The converter generates all standard sizes (16, 32, 48, 64, 128, 256) so your icon looks crisp at every size.

Frequently Asked Questions

What is an ICO file?+
An ICO file is a Windows icon format that can contain multiple image sizes in one file. It's commonly used for favicons (browser tab icons) and Windows application icons. A single ICO can include 16x16, 32x32, 48x48, and larger sizes so the system can choose the best one.
What sizes should I include in my ICO file?+
For favicon use, include at least 16x16 and 32x32. For complete compatibility, add 48x48 and 256x256. The 16x16 and 32x32 sizes are used in browser tabs, 48x48 for Windows shortcuts, and 256x256 for high-resolution displays.
Can I convert any PNG to ICO?+
Yes, any PNG image can be converted to ICO. For best results, use a square PNG image with transparent background. Non-square images will be centered with transparent padding. The tool preserves transparency in the output ICO file.
Is this PNG to ICO converter free?+
Yes, completely free with no signup required. All processing happens in your browser — your images are never uploaded to any server, ensuring complete privacy.
Why use ICO instead of PNG for favicons?+
ICO files can contain multiple sizes in one file, allowing browsers and operating systems to automatically choose the best size. While modern browsers support PNG favicons, ICO provides better compatibility with older browsers and Windows applications.

Learn More

ScreenSnap Pro — turn plain screenshots into polished visuals with backgrounds and annotations
Available formacOS&Windows

Make every screenshot look pro.

ScreenSnap Pro turns plain screenshots into polished visuals — backgrounds, annotations, GIF recording, and instant cloud links.

See ScreenSnap Pro

Related Tools

Favicon Generator

All favicon sizes + HTML

Image Resizer

Resize to any dimension

SVG to PNG

Convert vectors to images