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Convert ICO to PNG

· Last updated：2025-10-16

Convert ICO icon files to PNG format with transparency support and customizable output options

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Written by the Elysia Tools team
Image355
Files143
PNG63
Transparency49
Resize19
Icon12
ICO8

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category
Media
Input types
file, number, select, range, checkbox
Output type
file
Sample coverage
4
API ready
Yes

Overview

Easily convert your ICO icon files into high-quality PNG images while maintaining transparency and customizing output dimensions or compression levels.

When to use

  • When you need to use a Windows icon file in a web project or application that requires standard PNG format.
  • When you want to extract a specific resolution from a multi-size ICO file for better image clarity.
  • When you need to optimize icon file sizes for faster loading on websites without losing transparency.

How it works

  1. 1Upload your ICO file using the file selector.
  2. 2Select your preferred extraction size or set custom output dimensions.
  3. 3Adjust the PNG compression level and filtering settings to balance file size and quality.
  4. 4Click convert to process the file and download your new PNG image.

Use cases

  • Preparing website favicons for cross-browser compatibility.
  • Extracting high-resolution icons from legacy Windows system files for UI design.
  • Reducing the file size of icon assets for mobile application development.

Compare alternatives

  • Extract video frames as an image sequence with customizable frame rate, quality, and output format

  • Convert Sony ARW RAW files to PNG format.

  • Convert DNG (Digital Negative) RAW files to PNG format.

Who it's for

Best for

  • Convert files in the browser.
  • Workflows where Extract Size matters, such as Auto (largest available) or 16x16.
  • Repeatable jobs with files and the same settings every time.

Not ideal for

  • Fully automated batch jobs — this page is built for interactive use; use the API endpoint for scripts.
  • Content in other formats — this tool expects files.

Edge cases & common failures

  • Very large files

    Large files take longer and can hit browser memory limits — try a smaller sample first.

  • Skipping the output check

    Compare the first rows or pages of the output with the input before using it in production.

  • Files from unusual exporters

    Some files use format variants that do not convert cleanly — if the output looks wrong, re-save the file from the app that created it and try again.

Examples

1. Web Developer Favicon Conversion

Web Developer

Background

A developer has a legacy 256x256 ICO file that needs to be used as a standard PNG favicon on a website.

Problem

The browser requires a PNG format, and the original file is too large for web performance standards.

How to use

Upload the ICO file, set the output width and height to 64px, and set the compression level to 9.

width: 64, height: 64, compressionLevel: 9, preserveTransparency: true

Outcome

A perfectly resized, highly compressed 64x64 PNG file ready for web deployment.

2. UI Asset Extraction

Graphic Designer

Background

A designer needs to extract a specific 48x48 icon from a multi-size ICO file to use in a presentation.

Problem

The ICO file contains multiple layers, and the designer needs to isolate the 48x48 version.

How to use

Upload the ICO file and select '48' from the 'Extract Size' dropdown menu.

FAQ

Does this tool support transparency?

Yes, the tool preserves the original transparency of your ICO file by default.

Can I extract specific sizes from a multi-size ICO?

Yes, you can use the 'Extract Size' option to select a specific resolution like 32x32 or 256x256.

What is the maximum file size I can upload?

You can upload ICO files up to 5MB in size.

How does the compression level affect the output?

A higher compression level (up to 9) results in a smaller file size, while lower levels provide faster processing.

Is the conversion process secure?

Yes, your files are processed securely and are not stored on our servers after the conversion is complete.

Hub

SVG Favicon and Icon Conversion Workflow

Prepare favicon, app icon, and web icon assets from SVG, PNG, ICO, JPG, and WebP sources with conversion and optimization checks.

Hub

Image Format Conversion Without Losing Transparency or Motion

Convert still images, icons, or animated assets into a delivery-friendly format while protecting transparency, frame behavior, dimensions, and preview compatibility.

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extractSize: 48, preserveTransparency: true

Outcome

A clean 48x48 PNG image extracted directly from the source icon file.

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