NiceScaler is a free, portable executable to upscale PNG, JPEG, BMP, WEBP, TIF, MP4, WEBM, GIF, MKV, FLV, AVI, and MOV videos.

NiceScaler Features:
Image and video upscaling
Different IA models selection
Drag and drop single image or multiple images (batch upscaling)
Upscaling x2 & x4
Simple and clean GUI
Compatible with PNG, JPEG, BMP, WEBP, TIF images && MP4, WEBM, GIF, MKV, FLV, AVI, MOV videos

NiceScaler features a nice interface that's easy to use at any level. Upscaling isn't in my wheelhouse, so I am not familiar with FSRCNN, EPPCN, LapSRN, and EDSR, but there are links on the developer's website to the websites if you're not familiar.

You can easily drag-and-drop an image or multiple images and choose from one of the upscaling methods mentioned earlier. Click Upscale when you're ready, and NiceScaler will save the image in the same location you ran NiceScaler from.

NiceScaler is free, but donations are accepted from within the app.

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