Image to Base64 Converter

What is a Base64 image?

A Base64-encoded image is a text representation of binary image data. Instead of linking to an external image file, you can embed the image directly in your HTML, CSS, or JSON using a data: URL.

When should I use Base64 images?

• Embedding small icons or logos in CSS to reduce HTTP requests.
• Sending images as part of a JSON API response.
• Creating self-contained HTML files that don't depend on external resources.
• Embedding images in email templates.

Is there a size downside?

Yes — Base64 encoding increases the file size by approximately 33%. It is best used for small images (under 50KB). For large images, always use a direct URL reference instead.

Frequently Asked Questions

Does this work with SVG files?

Yes — all image formats supported by your browser are supported, including SVG, GIF, AVIF, and HEIC (where browser support exists).