Convert PNG to ICO
Free, instant and private — your PNG files are converted right in your browser and never uploaded to a server.
How to convert PNG to ICO
- Step 01
Add your PNG files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
It runs in your browser using its built-in image engine — no upload, no queue, no waiting.
- Step 03
Download your ICO files
Save each file individually or grab them all at once. Done.
Why convert PNG to ICO?
PNG is the ideal source for a favicon: it's lossless and keeps transparency. This packs your PNG into a proper .ico containing the standard 16, 32 and 48 px sizes, so every browser and Windows shows a crisp icon. For best results, start from a square PNG.
PNG vs ICO at a glance
PNG is the lossless workhorse — pixel-perfect quality and full transparency support, accepted everywhere. ICO is the Windows icon container — bundles several sizes in one file, still the format browsers expect for favicon.ico.
| Property | PNG | ICO |
|---|---|---|
| Extension | .png | .ico |
| Full name | Portable Network Graphics | Windows Icon |
| First released | 1996 | 1985 |
| Developed by | PNG Development Group (W3C standard) | Microsoft |
| Compression | Lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Best for | screenshots, logos, graphics with sharp edges or transparency | favicons and Windows application icons |
PNG to ICO — frequently asked questions
Is this PNG to ICO converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Are my PNG files uploaded to a server?
No. The conversion happens entirely on your device using your browser's built-in image engine. Your PNG files never leave your computer or phone — which is also why the conversion is nearly instant.
What sizes will the ICO contain?
16×16, 32×32 and 48×48 — the three favicon standards — all in one file, so each context picks the sharpest.
Does my PNG need to be square?
Ideally yes. If it isn't, we centre it on a square canvas and keep the aspect ratio; the surrounding area stays transparent.
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Need the reverse? Convert ICO to PNGExplore the ICO converter