About Waifu XL
Waifu XL is a browser based image upscaler built for anime style art. A user chooses an image file, selects a scale, and downloads the enlarged result or copies it to the clipboard. The site describes it as a clean, local first tool.
Processing happens entirely in the browser, so images never leave the user's device. No signup is required. The home page also shows lists of top characters and top descriptors with counts, such as hair color and eye color tags, alongside the upload controls.
It is aimed at fans, illustrators and collectors of anime artwork who want a larger or cleaner copy of a low resolution image without installing software or uploading files to a server. The tool is made by a small group that calls itself the Future Gadgets Lab, and the site carries a donation link.
The site publishes no pricing page and lists no paid plans. Use appears to be free and supported by donations.