What image formats are supported?

PNG, JPEG, GIF, WebP, and SVG are all supported. The output data URI will include the correct MIME type automatically based on the uploaded file.

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.

How do I use the Base64 data URI in HTML?

Use it as the src attribute of an img tag: . You can also use it in CSS as a background-image value.

Image to Base64

Convert an image file to a Base64 data URI string.

Drop an image here or click to browse

Supported: PNG, JPEG, GIF, WebP, SVG

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FAQ

What image formats are supported?: PNG, JPEG, GIF, WebP, and SVG are all supported. The output data URI will include the correct MIME type automatically based on the uploaded file.
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.
How do I use the Base64 data URI in HTML?: Use it as the src attribute of an img tag: <img src="data:image/png;base64,..." />. You can also use it in CSS as a background-image value.

Upload any image (PNG, JPEG, GIF, WebP, or SVG) and instantly convert it to a Base64-encoded data URI. The resulting string can be embedded directly in HTML, CSS, or JSON without needing a separate file. Conversion happens entirely in your browser — your image is never uploaded to any server.