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Turn your WebP files into ICO right in the browser — this tool will grow each file and hand it back in seconds, with nothing uploaded to any server. WebP is Google's modern format that does both lossy and lossless, typically 25–35% smaller than JPEG or PNG at the same quality. ICO is the Windows icon and favicon format, holding one or more small square images up to 256×256. The conversion keeps your image faithful while switching it into the ICO container. Free, private, unlimited, and watermark-free.
How to Convert WebP to ICO
Add your WebP file
Drag and drop, or click to browse. You can convert several at once — they are processed together, right here in your browser.
Convert to ICO
Press Convert. ICO is lossless, so every pixel is preserved exactly.
Download
Save each ICO file, or grab them all as a ZIP. Nothing was ever uploaded, so nothing needs deleting.
Why convert WebP to ICO?
The main reason is favicons and Windows application icons, where a compact square with transparency is needed. WebP excels at web images where small size matters, but when you need pixel-perfect quality, ICO is the better fit. This tool makes that switch instantly, right in your browser.
What happens to quality?
ICO is a lossless format, so the conversion preserves your image exactly — no detail is discarded in the ICO encoding itself.
A note on file size
Note that ICO files are usually larger than WebP — ICO stores 24-bit colour with transparency, so this trades size for compatibility.
About WebP
WebP is Google's modern format that does both lossy and lossless, typically 25–35% smaller than JPEG or PNG at the same quality. Best for web images where small size matters, with transparency and animation supported in one format.
About ICO
ICO is the Windows icon and favicon format, holding one or more small square images up to 256×256. Best for favicons and Windows application icons, where a compact square with transparency is needed.
Common Uses for WebP to ICO
- Converting WebP to ICO for a project that specifically requires Windows Icon files, where WebP is not accepted.
- Preparing images for design work that needs transparency support.
- Batch-converting a whole folder of WebP images to ICO at once, instead of doing them one at a time.
- Switching a WebP export into ICO so it opens correctly in the tools your team actually uses.
- Archiving WebP images as lossless ICO so no further quality is lost over time.
WebP vs ICO: Key Differences
| Aspect | WebP | ICO |
|---|---|---|
| Compression | Lossy or lossless | Lossless |
| Transparency | Supported | Supported |
| Animation | Supported | Not supported |
| Colour depth | 24-bit colour with optional alpha | 24-bit colour with transparency |
| Typical file size | Small | Medium |
| Best used for | web images where small size matters | favicons and Windows application icons |
Tips & Things to Know
Check the file size after converting
Note that ICO files are usually larger than WebP — ICO stores 24-bit colour with transparency, so this trades size for compatibility. If size matters for your use case, the before-and-after figures shown above tell you exactly what changed, so there are no surprises when you upload or share the result.
Transparency is preserved
Both formats support an alpha channel, so any transparent regions in your WebP stay transparent in the ICO — nothing is flattened onto a solid background.
Everything stays on your device
This converter runs entirely in your browser using your own processor. Your WebP files are never uploaded, stored, or seen by anyone, which makes it safe for private photos, client work, and confidential documents. When you close the tab, nothing remains.
The conversion is faithful
ICO is lossless, so every pixel is preserved exactly as it was in your WebP, meaning you do not have to worry about settings — just convert and download.
Frequently Asked Questions
How do I convert WebP to ICO for free?
Add your WebP file above and press Convert. The ICO download appears in seconds. It is completely free, with no signup, no limits and no watermark.
Is my WebP uploaded to a server?
No. The entire conversion runs inside your browser using your device's own processor, so your images never leave your computer. That matters for private photos and confidential work.
Can I convert multiple WebP files at once?
Yes. Add as many as you like and they are converted in one batch, then offered individually or as a single ZIP download.
Will converting to ICO reduce quality?
No. ICO is lossless, so the conversion keeps every pixel. Any quality limit comes only from the original WebP, not from this step.
Does ICO support transparency?
Yes, ICO supports an alpha channel, so transparent areas in your image are preserved.
Why is my ICO file larger than the WebP?
ICO stores 24-bit colour with transparency without lossy compression, so it is naturally larger than WebP. This is expected and the image quality is fully intact.
What is the difference between WebP and ICO?
WebP is Google's modern format that does both lossy and lossless, typically 25–35% smaller than JPEG or PNG at the same quality. ICO is the Windows icon and favicon format, holding one or more small square images up to 256×256. That difference is what this conversion is really about.
Is there a file size limit?
Because processing happens in your browser, very large images depend on your device's memory, but typical photos convert instantly. Nothing is capped by an upload limit.
Do I need to install anything?
No. This works in any modern browser on any device — Windows, Mac, Android or iPhone — with nothing to install.
Is this WebP to ICO converter really free?
Completely free, forever, with no account, no watermark and no hidden premium wall.
100% free · No signup · No watermark · Files never leave your browser
Last updated: July 18, 2026 · FlipMyFormat Convert WebP to ICO
Written and maintained by the FlipMyFormat team · Runs entirely in your browser