ICO to WebP Converter

Summary

This tool converts ICO (icon) files to WebP format entirely inside your browser. ICO files are multi-resolution containers — a single .ico can embed images at 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels. After loading your file, the tool lists every available size so you can pick the resolution you need, adjust the WebP quality, and download the result. No files are ever sent to a server — your favicon stays completely private on your device.

How it works

1. Upload any ICO or favicon file by clicking the upload area or dragging it in.
2. The browser reads the ICO binary and decodes each embedded image size using the Canvas API.
3. A grid of available sizes appears — click any tile to select that resolution.
4. Use the quality slider to set the WebP compression level (1–100).
5. Click "Download WebP" to save the chosen resolution as a WebP file.

Use cases

• Convert a favicon to WebP for use in modern web projects that prefer WebP.
• Extract a high-resolution WebP from a multi-size ICO for design assets.
• Prepare icon assets for web manifests or PWAs that accept WebP format.
• Recover a usable image from an ICO file when no source WebP is available.
• Convert Windows application icons to WebP for cross-platform use.
• Reduce icon file size compared to PNG by using WebP compression.
• Preview all sizes embedded inside an ICO before deciding which resolution to export.
• Convert ICO favicons to WebP for email signatures or presentations.

Frequently Asked Questions