How do I use the Base64 favicon in HTML?

Paste the Base64 string as the href in your favicon link tag: . The converter outputs the complete data URI including the prefix.

Why would I embed a favicon as Base64?

Base64 embedding eliminates an HTTP request for the favicon file. This is useful for single-file HTML applications, offline apps, or when you want to minimize server requests.

Does Base64 encoding increase file size?

Yes, Base64 encoding increases data size by approximately 33%. A 4KB ICO file becomes about 5.3KB as Base64. Consider this trade-off between file size and request reduction.

Can I use Base64 favicons in all browsers?

Yes, data URI favicons are supported by all modern browsers. Very old browsers (IE7 and earlier) may not support them, but these are rarely used today.

Is the ICO to Base64 conversion free?

Yes, completely free with no hidden costs, watermarks, or usage limits. Convert as many favicon files as you need without registration.

Are my ICO files secure during conversion?

Absolutely. All processing happens locally in your browser using JavaScript. Your ICO files never leave your device or get uploaded to any server.

ICO to Base64 Converter

Convert ICO favicon files to Base64 encoded strings for embedding directly in HTML, CSS, or JavaScript. Perfect for single-file applications and inline favicon embedding.

ico

base64

converter

Share this tool:

Upload ICO Image

Drag and drop your ICO favicon or click to browse

Drop your ICO file here

or click to browse files

Supports: ICO

Continue Your Images Journey

More tools you might find useful

AVIF to Base64 Converter