FreeNo uploadNo sign-upBatch
ICO to PNG Converter
Convert ICO to lossless PNG, transparency included. Runs entirely in your browser.
Drop ICO files here
batch and mixed formats welcome
- Private by design. Converted inside your browser.
- Instant. No upload queue, no waiting.
- Unlimited. Convert hundreds of files, download as ZIP.
How to convert ICO to PNG
Add your ICO files
Drop them on the converter, click Choose files or paste from the clipboard. You can add as many as you like.
Adjust the settings
No settings needed: PNG is lossless and keeps the full resolution.
Download your PNG files
Each file converts automatically. Save files one by one or all at once as a ZIP.
Why convert ICO to PNG?
ICO holds several sizes of the same icon in one file. Browsers use it for favicons and Windows uses it for app and shortcut icons.
PNG is lossless and supports transparency, so the result is a pixel-perfect copy that opens in every browser, editor and Office app.
ICO vs PNG
| ICOWindows icon | PNGPortable Network Graphics | |
|---|---|---|
| Type | Icon container with several sizes | Raster graphic |
| Compression | PNG or BMP inside | Lossless |
| Transparency | Supported | Full alpha channel |
| Animation | Not supported | APNG only, limited support |
| Support | Browsers (favicon), Windows | Every browser and editor |
| Best for | Favicons and Windows icons | Screenshots, logos, UI, images with text or transparency |
Frequently asked questions
Does converting ICO to PNG lose quality?
No extra quality is lost. PNG stores every decoded pixel losslessly. The file may be larger than the original because PNG does not use lossy compression.
Can I convert many ICO files at once?
Yes. Add as many files as you like; each one converts automatically and you can download them all as a ZIP.
How do I open ICO files without converting?
You need software that supports ICO. If you only need to view, share or upload the image, converting it is usually quicker than installing a new program.
Are my files uploaded to a server?
No. formatmath converts files with code that runs inside your browser. Your files are never uploaded, stored or seen by us.
Is it free?
Yes. There is no watermark and no daily limit. An account is optional and only keeps a history of your conversions.