image upscaling Archives

11 Best Free and Open Source Image Upscaling Tools

Image upscaling brings the power of AI upscaling to your fingertips, allowing you to turn low-resolution images into high-quality outputs.

Open Photo AI is a photo enhancement application offering denoising, face restoration, colorization, sharpening and image upscaling.

Anime4KCPP is a high performance anime image and video upscaler using a CNN-based algorithm with CPU and GPU acceleration.

waifu2x-ncnn-vulkan upscales and denoises images on Vulkan GPUs, with model selection, batch processing, tiling and test-time augmentation.

chaiNNer builds image processing pipelines with AI upscaling, batch jobs, video nodes and support for PyTorch, NCNN, ONNX and TensorRT.

Holloway’s Upscaler enlarges images and video with Real-ESRGAN models, FFmpeg integration, format choices and resumable workflows.

Real-ESRGAN GUI enlarges images and GIFs using Real-ESRGAN or Real-CUGAN, with batch processing, drag and drop, and custom sizing.

jdPixelUpscaler enlarges pixel art using colour-preserving pixel replication, with a desktop interface, command-line options and D-Bus.

Aeternum is a minimal Rust image upscaler using Upscayl-NCNN, with selectable models, output formats, compression and drag-and-drop input.