Create favicon images for website development. Every conversion runs locally on your Mac — your PNG files are never uploaded.
macOS 14 or later · Apple silicon · Free to try
PNG is a lossless image format that supports transparent backgrounds. ICO is the icon format used for website favicons and Windows apps. Create favicon images for website development.
PrivateRemix handles the PNG-to-ICO conversion in a couple of clicks, with the result saved right next to your original file.
Unlike free online converters, PrivateRemix has no server. Your PNG files stay on your Mac — no upload, no cloud, no account.
Drag a PNG file into PrivateRemix, or pick one from your Mac.
Select ICO from the formats PrivateRemix offers for your file.
The new ICO appears next to the original. Nothing leaves your Mac.
PrivateRemix preserves your content faithfully during the conversion. Text, images and layout are carried across as cleanly as the formats allow.
Yes. PNG stores a full alpha channel, so transparent backgrounds are preserved. Formats like JPG do not support transparency and will fill it with a solid colour.
A favicon commonly bundles 16×16, 32×32 and 48×48 pixel versions. PrivateRemix produces an ICO ready to drop into your website.
No. PrivateRemix runs entirely on your Mac using its own processor. Your PNG files never leave the device — there is no server to upload to, and it works fully offline.
Yes. Drop in a batch of PNG files and PrivateRemix converts them all locally, saving each new ICO next to its original.
Free to try. macOS 14 or later, Apple silicon.