Is POTX to WebP conversion free?

Yes, completely free with no account required. Guests convert up to 10 files a day on webp.now.

How do I convert POTX to WebP?

Upload your POTX file, pick any options you need, and click Convert. The WebP file downloads in seconds — no software, plugin or codec to install.

Can I convert several POTX files at once?

Yes. Batch upload is supported on this tool — queue up to 50 files and the finished WebP files come back as a single zip.

Does webp.now keep a copy of my POTX file?

No. The upload is held only long enough to run the conversion. It is deleted once you download the result, and automatically within 24 hours if you abandon the page. Nothing is copied to backups, archives, analytics or any training dataset.

Does this work on mobile?

Yes. webp.now runs in any mobile browser — Safari, Chrome or Firefox on iPhone and Android. The converted file saves straight to your device.

Why convert POTX to WebP rather than JPG?

WebP lands 25-35% smaller than JPG at the same visual quality and keeps transparency, which JPG cannot do at all. Every browser in current use renders it. JPG is still the safer pick if the image has to survive email clients or very old software.

Does converting POTX to WebP lose quality?

WebP is lossy, so some data is discarded. At quality 80-85 the result is visually indistinguishable from the POTX source for photographic content. For logos, screenshots and line art, use lossless mode to keep edges perfectly crisp.