⚙️ Universal Converter LOCAL ONLY
Drag & drop your WebP, PNG, JPG, or SVG images here
or click to select files. Unlimited batch processing in your browser.
Background: Transparent keeps the image's alpha channel (best for icons and logos). White and Black flatten the image onto a solid backdrop (best for favicons that need an opaque square). Fit: Fill center-crops to the square edge; Contain fits the whole image and adds padding.
Favicon mode produces favicon.ico (16/32/48) plus PNG icons at 16, 32, 48, 192 and 512 px, together with copy-paste HTML. If your source WebP is smaller than a requested size, it is scaled up.
💡 Your images never leave this device. All conversion happens inside your browser using the HTML5 Canvas API. ICO files can hold one size or several sizes (16–256 px) so Windows and browsers can pick the right one at any DPI.
Why Convert WebP to ICO?
Modern tools, game engines, and websites love WebP because it compresses artwork dramatically without visible quality loss. But Windows, browsers, and many launcher systems still expect the classic ICO format for app icons, taskbar icons, exe icons, and favicons. Use this free browser-based converter to bridge that gap in one click — for a single file or a whole batch.
Game & Launcher Icons
Turn a single WebP logo into a multi-size ICO that Steam, itch.io, and desktop shortcuts render cleanly at any taskbar size.
Website Favicons
Generate a crisp browser-tab favicon in seconds — including a full favicon package with PNG sizes and ready-to-paste HTML.
Windows & App Icons
Prepare exe, app, and folder icons for Windows at 16–256 px, with a 256×256 master that downscales beautifully at any DPI.
Privacy First
Because nothing is uploaded, you can safely convert confidential or unreleased game assets with zero leak risk.
How It Works
- 1Add imagesDrag & drop any number of .webp files onto the converter.
- 2Pick sizesChoose one size, several sizes, or all sizes from 16×16 up to 256×256.
- 3Choose backgroundKeep transparency for icons, or flatten to white/black for favicons.
- 4Download ZIPEvery icon is packaged into a single ZIP, or grab each file individually.
Which ICO Size Should I Choose?
ICO icons are most useful when they include the sizes your operating system and browser will actually ask for. When you pick multiple sizes, they are embedded in one ICO file and the OS picks the best match.
- 16 pxTaskbar, window titles, legacy browser favicons.
- 32 pxStandard favicon, folder and file icons.
- 48 pxWindows desktop and HiDPI favicons.
- 64 pxToolbar and taskbar icons on Windows.
- 128 pxApp shortcuts and Retina-display icons.
- 256 pxHighest fidelity — Steam, itch.io, and Windows 4K use it.
Image Formats vs Windows ICO Format
Why you cannot simply rename an image to .ico: ICO is a specialized binary container format that bundles multiple bitmap resolutions with dedicated directory headers.
| Feature | ICO Container | WebP | PNG | SVG Vector | JPG / JPEG |
|---|---|---|---|---|---|
| Multi-Resolution Packaging | Supported (16–256px) | Single Size Only | Single Size Only | Infinite Scaling | Single Size Only |
| Windows Executable / Taskbar Native | 100% Native | Unsupported | Partial (Modern) | Unsupported | Unsupported |
| 32-Bit Alpha Channel Transparency | Full Support | Full Support | Full Support | Full Support | No Transparency |
| Legacy & Modern Browser Favicon | All Browsers (IE6→Chrome) | Modern Only | Modern Standard | SVG Favicon Only | Not Recommended |
| Zero-Upload Browser Processing | Client-Side Generator | Decoded Locally | Decoded Locally | Rendered via Canvas | Decoded Locally |
Standard HTML5 & PWA Favicon Integration
To guarantee crisp rendering across Google Chrome, Safari on Apple iOS, Microsoft Edge, and Android devices, paste this snippet directly into your site's <head>:
<!-- Universal Classic ICO Favicon -->
<link rel="icon" type="image/x-icon" href="/favicon.ico">
<!-- High-DPI PNG Favicons for Modern Desktop Browsers -->
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="48x48" href="/favicon-48x48.png">
<!-- Apple Touch Icon (iOS Home Screen Launcher) -->
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
<!-- Android Chrome, Web App Manifest & PWA Icons -->
<link rel="manifest" href="/site.webmanifest">
<meta name="theme-color" content="#ffffff">
Frequently Asked Questions
Are my WebP images uploaded to a server?
No. This is a fully client-side tool. Your files are read, resized, and packaged entirely inside your browser using the HTML5 Canvas API and the JSZip library. Nothing is ever transmitted over the internet.
Is the converter free?
Yes. There is no sign-up, no watermark, and no fee for processing or downloads. The website is supported by display advertising so the tool can stay free forever.
How many files can I convert at once?
There is no fixed limit. Because processing is local, your only constraints are your browser's memory and your device's performance. Progress updates live, so the UI never appears frozen during large batches.
Which ICO size should I choose?
For website favicons, 32×32 is the safe standard and 48×48 improves HiDPI screens. For Windows desktop, launcher, or game icons, 256×256 provides the highest fidelity and downscales well. Selecting multiple sizes embeds them all in one ICO so Windows and browsers can pick the best match.
Can I convert multiple WebP files at once?
Yes. Drag and drop or select many WebP files, choose your sizes, and convert. Every resulting ICO icon is downloaded either individually or as one ZIP file.
Does transparency work?
Yes. ICO output is written as 32-bit PNG-compressed entries, which preserves the alpha channel. Keep the background set to Transparent to keep transparency, or flatten to white or black for favicons that need a solid backdrop.
Can I use the ICO as a favicon?
Yes. Use the Favicon Generator mode to produce favicon.ico (16/32/48) plus PNGs at 16, 32, 48, 192 and 512 px, together with copy-paste HTML <link> tags. Modern browsers also accept PNG favicons, so the package covers old and new alike.
Does it work offline after the page loads?
Yes. Once the page and the JSZip library have loaded, conversion runs entirely locally. No further network requests are needed while you convert files.