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Image to Base64 Converter

Convert images to Base64 data URIs online. Drag and drop or upload any image to get Base64 encoded output.

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How to Use Image to Base64 Converter

  1. 1Drag and drop an image onto the upload area or click to select a file.
  2. 2The image preview and Base64 output appear instantly.
  3. 3Copy the full data URI for use in CSS or HTML, or copy the raw Base64 string.
  4. 4Check the file size comparison to see the encoding overhead.

Frequently Asked Questions

What image formats are supported?

All browser-supported image formats: PNG, JPEG, GIF, WebP, SVG, BMP, and ICO. The output preserves the original format in the data URI MIME type.

How much larger is the Base64 output?

Base64 encoding increases the data size by approximately 33%. A 100 KB image produces roughly 133 KB of Base64 text. This trade-off is acceptable for small images embedded directly in CSS or HTML.

Is my image sent to a server?

No. All conversion happens entirely in your browser using the FileReader API. Your images never leave your device.

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