WebP to Base64 Converter

WebP to Base64, explained

Encoding a WebP to Base64 turns the image's binary data into a plain-text string you can embed directly in your code. WebP is a modern format that compresses smaller than PNG or JPG at similar quality and supports both transparency and animation — so its Base64 strings tend to be shorter than the equivalent PNG.

How to use it

<img src="data:image/webp;base64,UklGRni..." alt="image" />

.hero { background-image: url(data:image/webp;base64,UklGRni...); }

Browser support

A Base64 WebP data URI shows up in any browser that supports WebP — which today is every modern browser (Chrome, Firefox, Safari, Edge). Encoding to Base64 doesn't change format support; it only changes how the same bytes are delivered. If you must support very old browsers, keep a PNG/JPG fallback.

Keep an eye on size

Base64 still adds about 33% over the raw file and inlined images can't be cached on their own. WebP's strong compression softens the hit, but for large images a normal cached .webp file is usually faster. Reserve inlining for small icons, thumbnails and single-file deliverables.

Private by design

The conversion runs locally with your browser's FileReader API — no upload, no server.