Free 100% In-Browser Tool

PNG to ICO Converter: Convert PNG to Favicon .ico

Convert PNG images into standard multi-resolution ICO icon files for website favicons and Windows application icons.

Quick Answer:Upload a square PNG image to generate a multi-resolution favicon.ico file ready for website deployment.
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Privacy First: 100% Client-Side Processing

Processed in your browser. Files are never uploaded.

How to Use the PNG to ICO Converter: Create Favicons Online Free

  1. 1Upload a square PNG logo.
  2. 2Select icon dimensions.
  3. 3Download the generated .ico file.

Formula & How It Works

ICO Container Directory Structuring

ICONDIR + [ICONDIRENTRY] + PNG_Payloads

Packages PNG byte streams into ICONDIR and ICONDIRENTRY headers.

Worked Examples

Creating Website Favicon

Input: logo.png (512x512)

Explanation: Generates multi-resolution icon bundle.

Result: favicon.ico (16/32/48px)

Frequently Asked Questions

Why do websites still need .ico format?▼

Old browsers and Windows desktop shortcuts specifically query /favicon.ico.

Quick Reference & Conversion Table

Icon SizeTypical Usage
16 × 16 pxBrowser tab icon
32 × 32 pxDesktop shortcut icon
48 × 48 pxWindows taskbar icon

⚠️ Common Pitfalls to Avoid

  • •Using non-square images resulting in stretched favicons.

💡 Practical Real-World Uses

  • •Generating website favicons for web development projects.
Last reviewed & updated: 2026-11-07
Free & Open Access
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