Converting ICO to PNG gives you the same content in a different container. It runs in your browser: nothing is uploaded, there is no queue and no size limit.
What changes when you convert ICO to PNG
- Both formats are lossless: nothing in the picture or sound changes, only the container and the compression.
- ICO layers are flattened into one image. Text stays as pixels, masks are applied, nothing is editable afterwards.
When to convert, and when not to
Convert to PNG for screenshots, logos, anything with sharp edges or transparency. Lossless with transparency. The safe default for screenshots, logos and UI.
Keep ICO for favicons and Windows app icons. Windows icon and favicon container, several sizes in one file.
How to convert ICO to PNG
- Drop your ICO file on the converter above, or click to choose. Several at once is fine.
- Check the options if you need them: resize, width (px), height (px), with both set, scale (%), never enlarge beyond the original.
- Click Convert, then Download. Nothing was sent anywhere, your browser did the work.
Questions
Is my ICO file uploaded?
No. The conversion runs in your browser with WebAssembly. There is no upload endpoint on this site. You can open your browser's Network tab, or go offline after the page loads, and it still works.
Is there a file size limit?
No fixed one. The limit is your device's memory: a large images file on a phone is slower than on a laptop, but nothing is rejected for being big.
Is it free?
Yes, without an account, without a daily cap and without a watermark. Your device does the computing, so there is no server bill to pass on.
Will the quality drop?
No. PNG is lossless: the images content is stored exactly.
Can I convert several files at once?
Yes. Drop them all; each is converted in turn and you can download them one by one or as a single ZIP.
Which engine does the conversion?
Image engine (jSquash: mozjpeg, oxipng, libwebp, libavif, libjxl), compiled to WebAssembly and running in your browser, on all your CPU cores when the browser allows it. First use downloads about 1.5 MB, cached afterwards.