About

A converter that stays out of the way

WebpUndo is a static website. It converts WebP images to PNG and JPG in the browser because that is the least dramatic way to solve a daily annoyance: the file you saved is the wrong format for the next box you have to fill.

We are not a cloud suite. There is no resize API, no “AI enhance,” and no reason to create an account. The useful surface is the drop zone, the quality slider, and a ZIP when you have more than one file.

Why the name

WebP is a fine format. “Undo” is what you want when a site forced it on you. The tool puts pixels back into PNG or JPG so older software can open them. It does not claim to restore a camera RAW that never left the phone.

What we optimize for

• Mobile-first layout so a photo from Files.app is one tap away.
• Honest errors when the drop is not a WebP.
• Copy you can read while deciding PNG vs JPG.
• A deploy that is just dist/ on Cloudflare Pages.

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