How big a file can I use?

Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.

Does my file get uploaded?

No. The page reads the file through the browser's own file API and processes it in the tab. Closing the tab discards the working copy, which is why there is no storage to clear and no retention policy to read.

Will it work on a phone?

Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.

Because the expensive part — the server farm — does not exist. Processing runs on your device, so the site can stay free without a signup wall in front of it or an upsell in the middle of a job.

PNG to WEBP

Convert PNG to WEBP and keep big size savings.

Drag & drop images here

HEIC, TIFF, SVG and GIF decode through built-in browser/WASM codecs

Add at least one image.

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About PNG to WEBP

PNG to WEBP is here for moving an image between formats: convert PNG to WEBP and keep big size savings. It takes PNG and produces WEBP. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.

Reach for it when moving an image between formats is a one-off rather than a workflow: one file, one result, no account in front of it.

How to use PNG to WEBP in 3 steps

Drop the picture on the page — PNG, up to 50 at a time.
Set the Quality slider for the lossy output.
Press Convert to WEBP and download the WEBP result.

What you get with PNG to WEBP

Batch up to 50 files, returned together
Runs in your browser — the file is never uploaded
Free to use, with no signup and no account
No watermark or logo added to your output
Works on desktop and mobile, no install

PNG to WEBP: questions

How big a file can I use?: Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.
Does my file get uploaded?: No. The page reads the file through the browser's own file API and processes it in the tab. Closing the tab discards the working copy, which is why there is no storage to clear and no retention policy to read.
Will it work on a phone?: Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.
Why is it free?: Because the expensive part — the server farm — does not exist. Processing runs on your device, so the site can stay free without a signup wall in front of it or an upsell in the middle of a job.