PNG / JPG to ICO Converter

Create favicon .ico files with multiple sizes. No signup, no watermark, no uploads. Your files never leave your device.

What is an ICO file?

ICO is the standard format for Windows icons and browser favicons. Unlike JPG or PNG, a single .ico file can contain multiple image sizes , so Windows, browsers, and apps can pick the right resolution depending on where the icon is displayed.

Which sizes should I include?

For a website favicon, 16×16 and 32×32 cover almost every browser and device. Add 64×64 for Windows taskbar pinning. Select all sizes if you need the icon to work as a Windows application icon too. Windows uses 256×256 for large icon views.

Best source image for ICO conversion

Use a square PNG with a transparent background for best results. The converter will resize your image to each selected dimension. A high-resolution source (at least 256×256) ensures the smaller sizes remain sharp.

Frequently Asked Questions

+Are my images uploaded to a server?

No. The entire conversion (resizing and ICO packaging) happens locally in your browser. Nothing is sent to any server.

+Which sizes should I include in my favicon?

For most websites, 16×16 and 32×32 are sufficient. Add 48×48 for Windows taskbar pinning and 256×256 for high-DPI displays and Windows application icons.

+What image should I use as the source?

A square PNG with a transparent background works best. Use at least 256×256 pixels as the source so smaller sizes stay sharp when scaled down.

+Can I convert multiple images at once?

Yes. Drop multiple images and each will be converted to its own .ico file using the same selected sizes.

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