Private image encoder

Image to Base64 Converter

Convert an image’s original bytes into a complete Data URL and raw Base64 text.

Your image stays on your device. Conversion happens entirely in your browser.

Choose an image

Drop an image here

PNG, JPEG, WebP, GIF, SVG, or AVIF up to 50 MB

The original file is read directly; it is not re-encoded or changed.

Base64 result

Preview of selected image
File name
MIME type
Original size
Dimensions
Base64 size
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Base64 image encoding

Base64 turns binary image bytes into text for HTML, CSS, JSON, APIs, and development tests. A Data URL adds the image MIME type and ;base64, prefix; raw Base64 contains only the encoded payload.

Encoding generally increases size by about 33%, so it is best suited to small assets or systems that require text rather than ordinary image delivery.

Frequently Asked Questions

Base64 represents binary data with text characters so it can travel in text-based formats.

It combines the MIME type, Base64 marker, and encoded payload into one value a browser can use as an image URL.

No. It usually increases the binary size by roughly one third. This tool shows the actual change.

No. Your browser reads and converts it locally.

Yes. Use the complete Data URL where an image URL is accepted, but prefer normal files for large images.

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