Base64 to WebP Converter
Paste a Base64 string or full data URI to preview the image instantly and download it as a WebP file — smaller than PNG or JPG.
100% client-side. Nothing is uploaded — decoding happens in your browser.
Base64 to WebP, explained
WebP is a modern format that often beats both PNG and JPG on file size while keeping quality and transparency. This converter detects PNG, JPG, GIF, WebP or SVG Base64 input and exports a real .webp file in your browser.
When to choose WebP
- Smaller files for the web. WebP typically compresses better than PNG or JPG.
- You need transparency or animation. WebP supports both.
- Modern browsers only. All current browsers support WebP; very old ones may not.
What you can paste
- A full data URI — for example,
data:image/png;base64,iVBOR...ordata:image/webp;base64,UklGR.... - A bare Base64 body — the source format is detected automatically before conversion.
Private by design
Decoding uses the browser's native image handling — the string is turned into an image element locally and never sent anywhere. Safe for confidential assets.
More Base64 converters
Frequently asked questions
How do I convert a Base64 string to a WebP?
Paste the Base64 string or full data URI into the box and click Convert to WebP. The source image is detected automatically and exported as a real .webp file.
Why use WebP over PNG or JPG?
WebP usually gives smaller files at similar quality and also supports transparency, making it a strong default for the web.
Is the decoder private?
Yes. Decoding happens entirely in your browser. Nothing is uploaded, so your data stays on your device.