Convert PNG to ICO Online Free
Converting PNG to ICO creates a Windows icon file, commonly used for website favicons. ICO is a container format that can hold multiple sizes (16x16, 32x32, 48x48, 256x256) in a single file for maximum compatibility.
Last updated: 2026
Frequently Asked Questions
How many format combinations are supported?
We support 250+ conversion combinations between 17+ image formats. You can convert between any supported format.
Will conversion affect image quality?
For lossless conversions (like PNG to BMP), quality is preserved. For lossy conversions (like PNG to JPG), you can adjust the quality setting.
Can I convert multiple files at once?
Yes! Our batch conversion feature lets you convert multiple files simultaneously.
How to Convert PNG to ICO
Upload your image
Click the upload area or drag and drop your PNG image file. You can also paste an image from your clipboard.
Select output format
Choose ICO as the output format. Adjust quality or background color settings if needed.
Convert and download
Click the Convert button to process your image. The conversion happens instantly in your browser. Download the result as a ICO file.
Frequently Asked Questions
What is an ICO file?
ICO (Icon) is a file format for computer icons in Microsoft Windows. It's commonly used for website favicons - the small icon shown in browser tabs.
What sizes should I use for a favicon?
Standard favicon sizes are 16x16 (browser tab), 32x32 (taskbar), and 48x48 (desktop). Our tool generates all three sizes by default for maximum compatibility.
How do I add a favicon to my website?
After converting to ICO, upload the file to your website root and add this HTML tag: <link rel="icon" type="image/x-icon" href="/favicon.ico">
Does converting PNG to ICO preserve quality?
Yes! ICO is a lossless format, so every pixel from your original PNG image is preserved exactly during conversion. There is zero quality loss. However, if your PNG source has already been through lossy compression, those artifacts will remain in the output.
Will transparency be preserved when converting PNG to ICO?
Yes! Both PNG and ICO support alpha channel transparency, so any transparent areas in your image will be preserved. This makes ICO a great choice for images that need transparent backgrounds, such as logos and UI elements.
What sizes should I include for ICO?
For favicons and Windows icons, include at least 16x16 (browser tab), 32x32 (taskbar), 48x48 (desktop shortcut), and 256x256 (high-DPI displays) in a single file. ICO is a container format that can hold all these sizes together.
How does ICO file size compare to PNG?
ICO is a lossless format, so file sizes will generally be larger than lossy alternatives. However, you get perfect pixel preservation in return.
Why convert PNG to ICO?
Converting PNG to ICO is useful when you need an icon or favicon format (ICO supports multi-resolution icons). PNG is best for logos, screenshots, UI graphics, and images requiring transparency, while ICO excels at website favicons, Windows app icons, and browser shortcuts.
Can I convert ICO back to PNG?
Yes, you can convert ICO back to PNG using our converter. For best results, always keep your original source file as a master copy.
Is my file uploaded to a server?
No! All conversion happens entirely in your browser using the Canvas API. Your images never leave your device. This means your files stay private and secure, and there are no file size limits or upload queues to worry about.
How many format combinations are supported?
We support 250+ conversion combinations between 17+ image formats. You can convert between any supported format.
Will conversion affect image quality?
For lossless conversions (like PNG to BMP), quality is preserved. For lossy conversions (like PNG to JPG), you can adjust the quality setting.