ConvertDuck

SVG to ICO Converter

Create multi-resolution Windows Icons (.ico) from SVG vectors.

Generate Professional Windows Icons from Vector SVGs

Static icons often look blurry when resized. Our tool solves this by embedding multiple optimized layers into a single .ico file. In our tests, converting vector assets to multi-res icons ensures your software or website favicon looks crisp on everything from legacy taskbars to 4K displays. Everything happens locally via the Canvas API, so your design privacy is guaranteed.

How to Create Your Multi-Layer ICO

1. Upload SVG

Drag your vector file into the workspace. We recommend square aspect ratios for the best results.

If your SVG has a transparent background, the ICO will maintain that transparency perfectly.

2. Select Resolutions

Choose which sizes to include, such as 16x16 for favicons or 256x256 for desktop shortcuts.

3. Convert & Download

Click 'Generate' to compile the binary layers. The process is instant as it uses your device's CPU.

Technical Compatibility

Input FormatScalable Vector Graphics (.svg)
Output StandardWindows Icon Resource (ICO) with PNG compression
Max ResolutionUp to 2048x2048 (Experimental)
Browser SupportChrome 90+, Edge 91+, Firefox 88+, Safari 14+

Browser Processing vs. Cloud Tools

CapabilityOur Local ToolTypical Cloud Site
Privacy100% Private (No Upload)Server-side storage
SpeedInstant (Local)Upload/Download Lag
BatchingUnlimitedOften throttled
Large FilesMay use CPUHandled by server

Frequently Asked Questions

Q.Why include multiple sizes in one ICO?▼
Windows uses different sizes for the taskbar (24px), desktop (32px), and file explorer (256px). A multi-layer ICO ensures the right size is always available without scaling artifacts.
Q.Does this work offline?▼
Yes, once the page is loaded, the conversion logic runs entirely in your browser without needing an internet connection.
Q.Is there a file size limit?▼
We recommend SVGs under 20MB to prevent browser tab crashes during the heavy rendering phase.
Q.Will it work for macOS icons?▼
This tool generates .ico files for Windows. macOS typically uses .icns, though many apps accept high-res ICOs or PNGs.