Image to Base64

About Image to Base64

Free online image to Base64 converter. Convert JPEG, PNG, WebP, SVG, or GIF images to Base64-encoded data URLs instantly. Get ready-to-use HTML img tag, CSS background-image snippet, or the raw Base64 string. Eliminates an HTTP request for small images. 100% browser-based using the FileReader API.

How to Use Image to Base64

1. Upload your image by clicking the dropzone or dragging it in (JPEG, PNG, WebP, SVG, or GIF).
2. The Base64-encoded data URL appears instantly.
3. Switch between tabs: Raw Base64, HTML img tag, and CSS background-image snippet.
4. Click Copy to copy the code snippet for use in your project.

Frequently Asked Questions

What is Base64 image encoding?

Base64 encoding converts the binary image data into an ASCII string. This creates a 'data URL' that can be used directly in HTML src attributes and CSS background-image properties, embedding the image without a separate HTTP request.

When should I use Base64 for images?

Base64 is best for small images (icons, logos, small UI elements) where eliminating an HTTP request improves performance. For large images, use a regular URL instead — Base64 strings are ~33% larger than the original binary, and large Base64 data URIs can slow down rendering.

How do I use a Base64 image in HTML?

Use it as the src of an img tag: <img src="data:image/png;base64,ABC123...">. This tool generates the complete, ready-to-paste tag for you.

Is my image uploaded to a server?

No. The conversion is done entirely in your browser using the FileReader API. Your image never leaves your device.