Questions people ask
Are my photos uploaded?
No. Everything happens in your browser on this device. Your photos are never sent anywhere.
Does it recover real detail?
No. The model estimates what the detail probably looked like, so edges look cleaner and the picture looks sharper, but it can invent small things. Do not rely on it to read faces, number plates or documents as evidence.
Why is it slow?
Your own device does all the work, one small part of the photo at a time. A photo of about 1000 × 1000 pixels can take a few minutes on a computer and much longer on a phone.
Which model is it?
Real-ESRGAN (realesr-general-x4v3) by Xintao Wang and others, released under the BSD 3-Clause licence. The model file is about 5 MB and comes from this site, checked against its hash.