Free Base64 Image Converter

Encode images as Base64 data URLs and back.

Select an image

Encoded locally as a data URL — ready for CSS or HTML embedding.

Your result will appear here.

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How to use the Base64 Image Converter

1Select an image or paste a data URL.
2Copy the Base64 string.
3Or decode back to a file.

Features

Both directions
CSS-ready output
Size comparison

Frequently Asked Questions

When is Base64 embedding worth it?

For small icons and backgrounds — it saves a request but inflates size by ~33%. Avoid for large photos.

Related Tools

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Base64 Decoder

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About the Base64 Image Converter

Convert images to Base64 data URLs for CSS/HTML embedding, or decode a data URL back to an image file. The Base64 Image Converter runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more Images tools or browse all free online tools.