Convert PNG to ICO

Create multi-size favicons (16x16 to 256x256) from your PNGs instantly.

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Drag & Drop PNG files here

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How to Convert PNG to ICO?

Create professional favicons for your website in seconds. Supports transparency and multiple sizes.

Upload PNG

Drag and drop your high-resolution PNG logo or icon. We recommend at least 256x256 pixels.

Configure Sizes

Select the standard sizes you need (e.g., 16px, 32px for browsers, 48px for Windows).

Download Icons

Get purely generated .ico files for each selected size, ready for deployment.

Pro Tip: Use Square Images

For the best results, start with a square image (aspect ratio 1:1). This ensures your icon isn't stretched or squashed.

Engineering Philosophy

Perfect Favicons.
Pixel-Perfect Scale.

Creating the perfect ICO isn't just about changing a file extension. It's about precision. We generate specifically sized ICO files (16x16, 32x32, 48x48) so you have complete control over which icon is used in every context.

Our engine uses smart resampling to resize your PNGs down to pixel-art sizes without turning them into a blurry mess. We deliver individual files for each size, ensuring maximum compatibility and clarity.

We operate on a "Verify & Vanish" architecture. Your images are processed in a secure, ephemeral tunnel and wiped instantly.

Built for Developers

Multi-Output

Generates specific files for 16x16, 32x32, 48x48, 256x256 etc.

Identity Safe

Zero logs. Zero retention. Your brand stays yours.

Favicon Ready

Formatted perfectly for web deployment

Why Use ICO format?

The ICO format is unique because it's a container, not just a single image. It can hold multiple images of different sizes and color depths.

This is essential for Favicons (browser tab icons) and desktop icons, where the operating system or browser needs to choose the best size for the current display context (e.g., a tiny 16x16 icon for a list view, or a large 256x256 icon for a desktop shortcut).

PNG vs. ICO: What's the difference?

Feature

PNG

ICO

Multi-Resolution

Yes

Browser Support

Good

Essential (Favicons)

Transparency

Yes

Desktop Icons

Native Support

Standard Icon Sizes

When creating an ICO file, it's best to include standard sizes:

16x16: Browser tabs (favicons) and taskbar icons.
32x32: Desktop shortcuts and high-DPI browser tabs.
48x48: Windows desktop icons.
256x256: Large icons for Windows Vista/7+ and high-res displays.

Key Terminology

Favicon

Short for 'Favorite Icon'. The small logo seen in browser tabs next to the page title.

Container Format

A file format (like ICO) capable of storing multiple distinct data streams (images) inside one file.

Downsampling

The process of reducing an image's resolution, often used to create the smaller 16x16 icon sizes.

Tool Capabilities

InputPNG

OutputICO

Sizes16, 32, 48, 256 px

Transparency Supported

100% Client Privacy

We don't hoard your icons. Processed instantly and discarded securely.

Verify & Vanish™

User Feedback

"Finally a converter that gives me the exact favicon sizes I need. Saved me so much time.

Sarah J.

Frontend Dev

"Clean interface and the icons came out crisp, even the 16x16 one.

Mark T.

Product Designer

Frequently Asked Questions

What sizes are generated?

We generate individual files for the sizes you select, such as 16x16, 32x32, 48x48, and 256x256 pixels. You get exactly what you ask for.

Does it support transparent backgrounds?

Yes! We preserve the alpha channel from your PNG, so your icons won't have ugly white boxes around them.

Why should I use ICO instead of PNG for favicons?

While modern browsers support PNG favicons, ICO is still the most compatible format, especially for legacy browsers and desktop shortcuts.

Is there a file size limit?

We accept PNG files up to 10MB, which is more than enough for any source icon image.

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