Why should I start with a PNG file?

PNG supports transparency and lossless compression, making it the ideal source format. Starting with a high-quality PNG ensures your favicon looks sharp and supports transparent backgrounds.

What PNG size should I use?

Use a square PNG of at least 256x256 pixels. This gives the converter enough detail to produce crisp icons at every target size without visible pixelation.

Is the transparency preserved in the ICO output?

Yes. The ICO format fully supports alpha transparency, so any transparent areas in your PNG will remain transparent in the resulting favicon.

What sizes should I include in the ICO file?

For maximum compatibility, include 16x16 (browser tabs), 32x32 (taskbar and high-DPI tabs), and 48x48 (Windows desktop shortcuts). Adding 64x64 covers additional use cases.

PNG to ICO Converter

Convert PNG images to ICO favicon files in seconds. Create multi-size favicons.

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Upload Image to Convert to ICO

JPG, PNG, WEBP, BMP

PNG to ICO conversion is the most common path for creating website favicons, since PNG is the standard export format from design tools like Figma, Sketch, Adobe Photoshop, and Canva. Our free PNG to ICO converter takes your PNG image and generates a properly structured ICO file with full transparency preservation, multi-size support, and correct binary headers. The ICO format remains the universal standard for website favicons because it is supported by every browser including older versions of Internet Explorer, and it allows multiple icon sizes within a single file. When you upload a PNG, the converter renders it at your selected sizes using high-quality bicubic resampling on an HTML5 Canvas, then constructs the ICO binary with an ICONDIR header, image directory entries, and PNG-compressed image data for each size. This approach produces compact ICO files that maintain the full quality and transparency of your original PNG design. The entire process runs locally in your browser — your PNG files are never uploaded to any server. Whether you are a web developer creating favicons for client projects, a designer preparing icons from your latest brand assets, or a blogger setting up a new site, this tool converts your PNG to a production-ready ICO file in seconds with no software installation required.

How to Convert PNG to ICO

Upload Your PNG Image

Click the upload area or drag and drop your PNG file. For best results, use a square PNG image with a transparent background.

Select Favicon Sizes

Choose which icon sizes to include: 16x16, 32x32, 48x48, 64x64, 128x128, or 256x256. Select multiple for a multi-size ICO file.

Convert PNG to ICO

Click convert and the tool generates a valid ICO file with proper headers and PNG-compressed image data at each selected size.

Download Your ICO File

Download the .ico file and place it in your website root directory as favicon.ico for instant browser recognition.

Why Convert PNG to ICO?

PNG is the standard export format from all major design tools

ICO format is universally supported by all browsers and operating systems

Full transparency preservation from PNG alpha channel to ICO output

Multi-size ICO files ensure crisp display at every icon context

No software installation required — works directly in your browser

Complete privacy — your PNG files never leave your device

Use Cases

Converting Figma or Sketch PNG exports to website faviconsCreating ICO favicons from PNG logo filesGenerating multi-size icon files from a single PNG sourceBuilding transparent favicons from PNG images with alpha channelsPreparing favicon.ico for website deployment and hostingConverting PNG app icons to ICO format for Windows applications

Best Practices for PNG to ICO

Start with a high-resolution square PNG (512x512 or larger) for best downscaling quality
Use PNG-24 with transparency for favicons with transparent backgrounds
Keep your icon design simple — details are lost at 16x16 pixels
Include 16x16, 32x32, and 48x48 sizes at minimum for web favicons
Test your favicon in multiple browsers after deployment