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PNG to ICO

Create favicon ICO from PNG

Click or drop a PNG file here

About PNG to ICO

PNG to ICO resizes your PNG to a chosen icon size (16, 32, 48, or 64px) and downloads it with a .ico file extension, entirely in your browser — your file is never uploaded to a server. Note that the downloaded file contains PNG-encoded image data renamed to .ico, rather than a true multi-resolution Windows ICO container; this works as a favicon in modern browsers but may not be recognized by software that expects the native Windows ICO binary format.

How to use PNG to ICO

  1. 1Click the upload area and select a PNG file from your device.
  2. 2Choose an icon size: 16x16, 32x32, 48x48, or 64x64.
  3. 3Click 'Convert to ICO' to process the image.
  4. 4Click the download button to save your favicon.ico file.

Frequently Asked Questions

What is an ICO file?

An ICO file is an image format traditionally used for website favicons and application icons, often containing multiple embedded resolutions. This tool produces a single-resolution PNG saved with a .ico extension, which works as a favicon in modern browsers.

Do I need to install any software to use this tool?

No, it's completely web-based and works directly in your browser.

Is there a file size limit for PNG uploads?

There's no fixed limit — processing happens locally, and favicon source images are typically small anyway.

Can I convert multiple PNG files at once?

No, only one file can be converted at a time.

Tips & Tricks

  • ✓For best results, start with a square PNG image at least as large as your chosen output size.
  • ✓Use a PNG with a transparent background if you want the icon to have transparency.
  • ✓Test the downloaded file in your browser's favicon slot to confirm it displays correctly.
  • ✓If you need a true multi-resolution Windows ICO file (for desktop app icons, for example), use a dedicated ICO-authoring tool instead.