Multi-resolution favicon extraction

ICO to PNG Converter Online - No Signup

Open ICO and favicon files, reveal every embedded resolution, preserve transparent pixels, preview each icon, and download individual PNGs or a complete ZIP without uploading your files.

Extract ICO Icons See how it works
Every embedded size Transparency preserved Private local processing PNG and ZIP downloads

ICO to PNG Icon Extractor

Add ICO files below. The extractor reads the icon directory, decodes embedded PNG and legacy bitmap entries, and exports every valid image as PNG.

100% local processing

Drop ICO files here

or browse from your device to extract multiple favicon files

Up to 20 ICO files · 50 MB each · transparent PNG output

01
Private by design ICO files remain on your device
02
Every valid entry Standard and unusual sizes are extracted
03
Transparency safe Alpha and AND masks are decoded
04
Flexible downloads Save one PNG or a complete ZIP
Complete favicon extraction

Reveal every image stored inside an ICO file

An ICO is a container rather than a single picture. It may hold several versions of the same icon at different dimensions and color depths. This ICO to PNG converter reads that container and exports each valid embedded image separately.

Common favicon resolutions include 16 × 16, 32 × 32, 48 × 48, 64 × 64, 128 × 128, and 256 × 256 pixels. The extractor also preserves unusual rectangular or nonstandard dimensions when they are valid.

Modern ICO files frequently contain PNG-compressed images. Older files may contain Windows DIB bitmap data with separate color and transparency masks. Both common storage methods are handled locally in the browser.

Transparent PNG output

Embedded PNG alpha is retained. Legacy bitmap entries use their alpha bytes and one-bit AND mask so transparent backgrounds, rounded edges, and anti-aliased icon details remain intact.

Premium capabilities

Everything needed to convert ICO to PNG

A professional icon inspection and extraction workflow for website favicons, desktop icons, and application resources.

All embedded resolutions

Every valid directory entry is extracted instead of returning only the largest or first icon.

Private local extraction

Binary parsing, image decoding, PNG creation, and ZIP preparation all happen on your device.

Transparency preserved

PNG alpha and legacy bitmap transparency masks are decoded into standard transparent PNG pixels.

Live icon gallery

Review every extracted resolution on a transparency grid and open larger previews before downloading.

Individual PNG downloads

Save only the exact size you need with clear, collision-resistant output filenames.

Organized ZIP archives

Download all completed PNG images in source-specific folders with one action.

Three simple steps

How to extract PNG images from an ICO

No desktop icon editor, account, installation, or server upload is required.

Step 1

Add ICO files

Select one or more ICO files or drag them into the private extraction area.

Step 2

Extract and preview

The browser decodes every valid icon and displays its size, source format, and transparent preview.

Step 3

Download PNG files

Save individual resolutions or package every extracted image inside one organized ZIP.

Format comparison

ICO vs PNG: what changes during extraction?

The extractor separates a multi-image icon container into standard, individually usable PNG images.

ICO
Extracted PNG
Structure A container that may hold several icon resources
Structure One independent image at one exact resolution
Storage May use embedded PNG or legacy Windows bitmap data
Storage Standard PNG encoding supported by browsers and editors
Transparency Stored through alpha data and optional AND masks
Transparency Represented as a standard per-pixel PNG alpha channel
Typical use Favicons, Windows icons, and application resources
Typical use Editing, websites, design systems, and image workflows
Extraction guidance

Best practices when converting ICO to PNG

Use the extracted images effectively in websites, applications, documentation, and design workflows.

1

Keep every original resolution

Small icons are often drawn differently from large versions, so avoid assuming every entry is identical.

2

Inspect transparent edges

Use the checkerboard preview to verify anti-aliased edges, shadows, and transparent backgrounds.

3

Choose the correct dimensions

Prefer an extracted size close to the final display size rather than enlarging a tiny 16-pixel icon.

4

Retain the original ICO

Keep the source container when you may need its original metadata, color depths, or platform-specific behavior.

Common questions

ICO to PNG icon extractor FAQ

How do I convert ICO to PNG online?

Choose or drag one or more ICO files into the extractor. The tool reads each embedded icon locally, creates transparent PNG files, and provides individual downloads or one ZIP archive.

Can this tool extract every size inside an ICO file?

Yes. The extractor processes every valid embedded entry, including common 16, 32, 48, 64, 128, and 256 pixel icon sizes as well as other valid dimensions.

Does ICO to PNG conversion preserve transparency?

Yes. Embedded PNG alpha is preserved, while legacy DIB icons are decoded using their alpha channel and one-bit AND transparency mask.

Are my ICO files uploaded to a server?

No. ICO validation, icon decoding, PNG creation, previews, and ZIP preparation happen locally inside your browser.

Can I extract icons from multiple ICO files?

Yes. You can add multiple ICO files, inspect the extracted icons from every source, and download all completed PNG images together in a structured ZIP archive.

Why does one ICO file contain several images?

ICO files can store multiple resolutions and color depths so browsers and operating systems can choose the most appropriate icon for each display context.

Is this ICO to PNG converter free?

Yes. The icon extractor is free to use, requires no account, adds no watermark, and allows immediate PNG and ZIP downloads.

Continue working

Related image tools

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Icon creation

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Image optimization

Image Compressor

Reduce extracted image sizes for websites, applications, sharing, and storage.

Image dimensions

Resize Image

Create exact output dimensions for interfaces, websites, app stores, and documentation.

Ready to reveal every icon in your ICO?

Extract all embedded sizes, preserve transparent pixels, inspect every PNG, and download your results without sending the source file to a server.

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