OneImage

PNG to ICO Favicon Converter

Convert PNG logos to ICO favicons for websites and web apps. Export crisp icons that look great in browser tabs and bookmarks.

Output Format

Drop images here or click to browse

How to turn a PNG logo into a favicon

Converting your images is quick and easy

1

Upload Your Image

Click the upload area or drag and drop your image file. We support over 40 input formats.

You can also paste an image from your clipboard

2

Choose Output Format

Select your desired output format from the format selector. Popular choices include PNG, JPEG, and WebP.

Hover over formats to see which ones support quality settings

3

Adjust Quality

For lossy formats like JPEG and WebP, adjust the quality slider to balance file size and image quality.

80-90% quality is usually the sweet spot

4

Download Result

Click the Convert button and download your converted image once processing is complete.

Converting multiple images? Download them all as a ZIP

Best practices for website icon exports

Different image formats serve different purposes. JPEG is great for photographs with small file sizes. PNG preserves transparency and quality for graphics. WebP and AVIF offer the best of both worlds with smaller sizes. Our converter uses ImageMagick WASM technology to handle all these conversions right in your browser, ensuring your images stay private while giving you professional-grade results.

Frequently Asked Questions

Common questions about image format conversion

What size PNG should I use for a favicon?

Common favicon sizes include 16×16, 32×32, and 48×48. You can prepare PNG files at those sizes and convert them to ICO for best results.

Can I put multiple sizes into one ICO file?

Yes. An ICO file can contain several sizes so your icon looks sharp on different screens. The converter can pack multiple PNG sizes into one favicon.

Will the background stay transparent?

Yes. ICO supports transparency, so logos with transparent backgrounds will keep that look in most modern browsers.

PNG to ICO Favicon Converter – Website Icons Made Easy | OneImage