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Image to Base64

Convert images to Base64 encoded strings

Drag & Drop Image Here

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Supports JPG, PNG, GIF, SVG

What is Image to Base64 Converter?

Convert any image to a Base64 encoded string with our free Image to Base64 Converter. Generate ready-to-use data URIs for embedding images directly in HTML, CSS, and JavaScript without separate file requests. Supports PNG, JPEG, GIF, WebP, and SVG formats.

How to Use Image to Base64 Converter

1

Upload an image or drag and drop it into the tool.

2

The Base64 string is generated automatically.

3

Optionally wrap the output in HTML or CSS syntax.

Key Features

Support for all common image formats
Generate HTML img tag with embedded data URI
Generate CSS background-image with data URI
Preview the encoded image
File size comparison (original vs Base64)

Frequently Asked Questions

Why convert images to Base64?

Base64 images can be embedded directly in HTML/CSS, eliminating extra HTTP requests. This improves perceived load time for small images like icons and thumbnails by reducing round trips to the server.

What is the maximum image size I should encode?

Encode images under 10KB for optimal performance. Larger images are better served as regular files with caching. Base64 increases data size by ~33% and cannot be cached independently.

Can I use Base64 images in CSS?

Yes, use data URIs in CSS background-image properties: background-image: url(data:image/png;base64,...). This is great for small decorative icons and UI elements.