Picwarden

JPG to WebP Converter

Convert JPG images to WebP locally in your browser. No uploads. Privacy-first. No ads. Use WebP when you want smaller, web friendly images for faster pages and better performance.

Privacy proof (10 seconds)

Disconnect from the internet and run a conversion. It works because it runs locally, no uploads.

Drop JPG images here
Supports JPG.
Files are converted locally in your browser. Nothing is uploaded to a server.
Output settings
Convert to
Output is locked to match this page.
Quality (JPG/WebP)
92%
Higher quality means bigger files.
No files selected.
Files
Add JPG images and they’ll show up here.

FAQ

Does this upload my files?
No. Everything runs locally in your browser. Your files never leave your device.

Can I use it offline?
Yes. After the page loads, disconnect from the internet and convert as normal.

Why WebP?
WebP is built for the web and often reduces file size at similar visual quality. Smaller images usually load faster.

Will WebP add transparency?
No. JPG has no transparency, so the WebP will be opaque unless you edit it afterwards.

What if something cannot open WebP?
Convert it back with WebP to JPG or use WebP to PNG for transparency.