Image to ICO Converter
Free online image to ICO converter. Turn PNG, JPEG, WebP, GIF, or BMP images into multi-resolution .ico favicon files (16-256px). 100% in-browser, no upload.
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What is Image to ICO Converter?
The Image to ICO Converter turns raster images (PNG, JPEG, WebP, GIF, BMP) into Windows ICO favicon files containing one or more resolutions. It renders each chosen size to a transparent PNG on an HTML canvas, packs them into the binary ICO container, and lets you download the result — all without sending your image to a server.
Key Benefits
- Produces a single multi-resolution .ico that looks sharp from a 16px browser tab to a 256px desktop shortcut.
- Accepts common formats so you can start from any photo or logo, not just SVG.
- Choose exactly which sizes to embed to balance file size and crispness.
- 100% client-side — no upload, no server, safe for proprietary logos.
- Live per-size previews catch pixelation and transparency problems early.
Common Use Cases
- •Generating a favicon.ico for a new website or web app.
- •Converting an existing logo PNG/JPG into browser and shortcut icons.
- •Creating multi-resolution Windows application icons.
- •Quick favicon creation during development without design software.
How to Convert an Image to ICO
- Upload your image: Drag and drop or click to select a PNG, JPEG, WebP, GIF, or BMP file (up to 20MB). The tool renders all seven sizes automatically.
- Pick the sizes you need: Toggle the size tiles (16, 24, 32, 48, 64, 128, 256px) to choose which resolutions to embed in the .ico file. Common picks are 16, 32, and 48.
- Preview the result: Each tile shows a live preview so you can check for pixelation or transparency issues before downloading.
- Download the .ico: Click "Download .ico" to save a single favicon.ico file containing every selected size, ready to drop into your website root.
Key Features
- Converts PNG, JPEG, WebP, GIF, and BMP source images into a single .ico file.
- Seven standard sizes from 16px to 256px, rendered with high-quality canvas smoothing.
- Choose exactly which sizes to embed to keep the file small or maximize crispness.
- Per-size live previews with pixelated rendering for small icons.
- Transparent PNG backgrounds preserve your logo alpha channel inside the ICO.
- 100% client-side processing — your image never leaves your browser.
Frequently Asked Questions
What image formats can I convert to ICO?
PNG, JPEG, WebP, GIF, and BMP. PNG is recommended because it preserves transparency (alpha channel), which the tool keeps inside the ICO file.
What sizes does the .ico file include?
You choose from 16, 24, 32, 48, 64, 128, and 256px. The downloaded .ico bundles every selected size into one multi-resolution file, so the browser picks the best fit automatically.
Is this tool safe for sensitive or proprietary logos?
Yes. All processing happens locally in your browser via the Canvas API — your image is never uploaded to a server, so it stays on your device.
Why does my icon look pixelated at 16px?
Small icons are inherently low-resolution. Use a simple, high-contrast source image, and preview the 16px tile before downloading. For favicons, 16px and 32px are the sizes browsers actually use in tabs.