How to convert ICO to PNG online
- 1
Drop your ICO file
Drag and drop your Windows Icon Format file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
- 2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs Windows Icon Format → Portable Network Graphics entirely in your browser tab. Most files finish in 1–3 seconds.
- 3
Download your PNG
Your Portable Network Graphics file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.
ICO vs PNG: format overview
Windows Icon Format
Microsoft · 1985
- Compression
- lossless
- Transparency
- Yes
- ✓ Multiple resolutions in a single file
- ✓ Required format for Windows app icons and favicons
- ✗ Not suitable for general image use
Portable Network Graphics
PNG Development Group (Thomas Boutell) · 1996
- Compression
- lossless
- Color depth
- 16-bit
- Transparency
- Yes
- ✓ Lossless compression — pixel-perfect quality
- ✓ Full alpha transparency (8-bit alpha channel)
ICO magic bytes: 00 00 01 00
PNG magic bytes: 89 50 4E 47 0D 0A 1A 0A
Why convert ICO to PNG?
ICO files are purpose-built containers for Windows icons and browser favicons. They work perfectly in that context, but ICO is not a general-purpose image format — most image editors, web platforms, design tools, and image processing scripts don't handle ICO natively, or open only the first (smallest) embedded size rather than the full-resolution version.
Converting ICO to PNG gives you an image you can actually work with. Figma, Sketch, Adobe XD, Photoshop, and virtually every other design tool opens PNG without any issues. If you're rebuilding a brand identity and the only source file you have for a logo is an ICO file, converting to PNG is the first step before any editing work begins. PNG also preserves the transparency that ICO images typically use — the icon's background stays transparent in the output.
ICO files often contain multiple sizes embedded within a single file (16×16, 32×32, 48×48, and sometimes 256×256). When converting, the tool typically extracts the largest embedded size, giving you the highest-resolution version available. Expect that version to be exactly as sharp as the source — PNG is lossless, so no detail is introduced or lost. If the ICO contains only small sizes (common for older favicons), the resulting PNG will be small and may not be suitable for larger uses like print or large-format display.
Quality & file size: ICO to PNG
Typical file sizes: ICO 10–100 KB → PNG 8–25 MB.
Both ICO and PNG use lossless compression, so no quality is lost in conversion. The output PNG file will be visually identical to the ICO source.
Color depth: ICO supports standard color, PNG supports 16-bit.
Transparency: ICO supports transparency. PNG preserves transparency.
Frequently asked questions
Privacy: how FormatDrop handles your files
Your ICOfiles are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.