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Kordu Tools
Image Tools Runs in browser Updated 31 Mar 2026

ICO to PNG Converter

Extract the largest image from an ICO favicon file and save as high-quality PNG. Batch support — no upload required.

ICO files can contain multiple sizes. The largest frame is automatically extracted as a PNG.

Click to upload or drag and drop

ICO up to 10MB

Drop multiple files to convert them all at once
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How to use ICO to PNG Converter

  1. Open the ICO to PNG converter

    Visit the tool on kordu.tools — no account or installation required.

  2. Upload your ICO file

    Click the upload area or drag and drop one or more ICO files. Batch conversion is supported.

  3. Automatic extraction

    The tool parses the ICO structure and automatically extracts the largest available frame.

  4. Preview the PNG

    Review the extracted image before downloading.

  5. Download your PNG

    Click Download to save the PNG. Batch files all download at once.

ICO to PNG Converter FAQ

Which frame is extracted from the ICO?
The largest frame in the ICO file is extracted. ICO files typically contain 16×16, 32×32, 48×48, and sometimes 256×256 versions. The 256×256 frame is extracted when available.

Is transparency preserved?
Yes. PNG supports full alpha transparency. Most modern ICO files use alpha-transparent backgrounds, which are preserved in the PNG output.

Is my file uploaded to a server?
No. The ICO file is parsed entirely in your browser using the icojs library. Your files never leave your device.

Can I extract all frames, not just the largest?
Currently, only the largest frame is extracted. If you need a specific size, use the image resizer after extracting the largest frame.

What if the ICO file is corrupted?
You'll see an error message if the file cannot be parsed. The tool validates the ICO structure before attempting extraction.

Can I convert multiple ICO files at once?
Yes. Drop multiple ICO files and download all extracted PNGs in a single batch.

What is an ICO file?
ICO is a Windows icon format that bundles multiple image sizes in one file. It's the traditional format for website favicons (favicon.ico) and Windows application icons.

What can I do with the extracted PNG?
The extracted PNG can be used in design tools, resized for different purposes, or used as a favicon in PNG format via the HTML link tag.

What's the difference between ICO and PNG favicons?
ICO is the traditional format supported everywhere including older browsers. PNG favicons work in all modern browsers via the <link rel="icon"> tag. For maximum compatibility, keep favicon.ico at your site root.

Can I use this on mobile?
Yes. The tool works in any modern mobile browser on iPhone, iPad, and Android devices.

Background

Convert ICO (icon) files to high-quality PNG format directly in your browser — no upload, no signup, no software installation required. ICO files are used as website favicons and Windows application icons; they typically bundle multiple resolutions in a single file (16×16, 32×32, 48×48, and sometimes 256×256).

This tool automatically extracts the largest frame from the ICO and saves it as a transparent PNG, preserving the original dimensions and any alpha transparency. The output is ideal for design work, resizing, or use in contexts where ICO is not supported.

Batch conversion is supported — drop multiple ICO files at once and download all PNGs in a single click. Processing runs entirely client-side using the icojs library; no data is ever sent to a server.

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