Convert PNG to ICO — free, private, in your browser
Convert PNG to ICO online for free, right in your browser — your files are never uploaded to a server. Drop in one image or a whole batch, keep every pixel (ICO is lossless), and download the ICO instantly. No account, no watermark, no limits — and it keeps working offline once the page has loaded.
Decoded with PNG optimizer, encoded with the universal engine — entirely on your device.
Why convert PNG to ICO?
favicon.ico still matters: legacy browsers, bookmarks, Windows shortcuts. This tool converts a PNG (ideally square, 256×256 or larger) into a proper ICO file locally in your browser.
How to convert PNG to ICO
- 1Drop your PNG files onto the tool above (or click to browse, or paste from the clipboard). Batches are fine.
- 2ICO is pre-selected as the output. ICO is lossless, so there is no quality to lose. Optionally cap the maximum dimension to also downscale.
- 3Each file converts in your browser and shows its new size. Download files individually or grab everything as a ZIP.
PNG vs ICO
| PNG | ICO | |
|---|---|---|
| Introduced | 1996 (PNG Development Group (W3C)) | 1985 (Microsoft) |
| Compression | Lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| HDR / wide gamut | No | No |
| Browser display | All browsers | All browsers |
| Typical use | Screenshots | favicon.ico |
About PNG full guide →
Lossless with full transparency. The standard for screenshots, logos and UI graphics.
About ICO full guide →
The favicon and Windows icon container format.
Frequently asked questions
Is it safe to convert PNG to ICO online?+
With EditItAll, your files are never uploaded: decoding and encoding run inside your browser (best-in-class modern codecs to decode, a universal image engine running in your browser to encode). The images stay on your device from start to finish, and the whole thing works offline once the page has loaded.
Will converting PNG to ICO lose quality?+
No. ICO is lossless: every pixel of the decoded PNG is preserved exactly.
Is there a file size or count limit?+
No hard limits and no accounts — processing uses your own device's memory and CPU, so very large images are only constrained by your browser (multi-hundred-megapixel images may fail on low-memory devices). Batch as many files as you like; they are processed in sequence.
Can I convert ICO back to PNG?+
Yes — use the ICO to PNG converter, or just change the output format dropdown after dropping files.
Want the full walkthrough? How do I create a favicon from an image?