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Drop one PNG or two hundred. Batch conversion is not a paid feature here.
Convert PNG to ICO
A site needs a favicon.ico, or a desktop application needs a real Windows icon resource, and the artwork exists as a PNG.
SafeConvert engineFreeNo sign-upBatch supported
Waiting for files/Engine: on-device/Network requests made: 0
What actually changes
PNG and ICO are not the same picture in two wrappers.
The PNG is resampled to the standard icon sizes and packed into a single ICO container. Transparency is preserved, which is what makes an icon sit correctly on a dark or light taskbar.
Worth knowing first
Icons are read at 16 pixels far more often than at 256, and artwork designed at large sizes turns to mush there. A logo with fine text needs a separate, simplified 16 pixel drawing, not an automatic downscale of the full mark.
Questions
PNG to ICO, answered
Which sizes should the ICO contain?
16, 32 and 48 covers browsers and Windows Explorer. Add 256 for high-density displays and the large icon view.
Do I still need favicon.ico?
Browsers prefer the PNG icons declared in your HTML, but they still request favicon.ico from the site root by default, so shipping one avoids a 404 on every visit.
Must the source be square?
Yes, in practice. Non-square artwork gets padded or distorted, because every icon slot is square.
How to convert PNG to ICO
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Choose your settings
ICO File is lossless, so nothing is thrown away in the conversion.
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Download
Converted and deleted the moment it finishes. Never written to permanent storage.