Upscayl - 🆙 Upscayl - Free and Open Source AI Image Upscaler for Linux, MacOS and Windows built with Linux-First philosophy. - GitHub - upscayl/upscayl: 🆙 Upscayl - Free and Open Source AI Image Upscaler for...

MadVR - MadVR uses your GPU to perform resolution upscaling, chroma upscaling, and all kinds of other video rendering enhancements that can significantly improve video quality. It can be used with a few different video players such as MPC-HC and PotPlayer.

waifu2x - Online/Offline tool to upscale images

Waifu2x Caffe - Waifu2x Caffe improves resolution of video and images using Deep Convolutional Neural Networks

RealSR - Real-World Super-Resolution via Kernel Estimation and Noise Injection

RealESRScaler - RealESRScaler - image/video deeplearning upscaler app (Real-ESRGAN)