Apps similar to chaiNNer include Upscayl, which is open source with a free version. Other options are waifu2x, Comfy, A1111 Stable Diffusion WEB UI and NodeTool. Image Upscaling Apps like chaiNNer are a crowded field, with more than 50 alternatives for Windows, the web, Mac, Android and Linux.
Open source desktop tool using advanced AI to enlarge and enhance images without loss of quality, available for Linux, macOS, and Windows. Linux-first development gives early access to Linux users. Requires Vulkan compatible GPU for upscaling.
Image Super-Resolution [upscaling] for Anime-style [low detail] art or images using Deep Convolutional Neural Networks.
Japan
ComfyUI is an open-source, node-based workflow engine that empowers creators to design, customize, and run complex generative AI pipelines across images, video, audio, and more.
United States
AUTOMATIC1111's Stable Diffusion web UI provides a powerful, web interface for Stable Diffusion featuring a one-click installer, advanced inpainting, outpainting and upscaling capabilities, built-in color sketching and much more.
NodeTool is the open-source creative AI workspace — every major model from every major provider, called with your own keys, wired into one node-based canvas you run on your machine.
Germany
EU
Upscales images by 16x with AI, perfect for large prints. Enhances realistic textures, clears pixelation, and retains details in low-res photos. Versatile for photographers and artists aiming for high fidelity or creative flexibility.
United States
Weavy uses a node based workflow that connects multiple AI models and editing tools in one unified canvas, allowing creators to build and adjust complex processes without switching apps. With this setup, they can branch prompts, compare model outputs, and refine results in real...
United States
Video, Image and GIF upscale/enlarge(Super-Resolution) and Video frame interpolation. Achieved with Waifu2x, Real-ESRGAN, Real-CUGAN, SRMD, RealSR, Anime4K, RIFE, CAIN, DAIN, and ACNet.
China
An image, gif and video upscaling and denoiser app developed with electron, react, waifu2x and ffmpeg.
Real-ESRGAN aims at developing Practical Algorithms for General Image/Video Restoration.
China
Offers enhanced image upscaling to high resolutions with region-based creativity, preservation of facial features, Smart and Dynamic Upscale for detail and composition, generative fill for fixes, precise content control, and minimized manual workflow throughout the process.
GermanyEU
Waifu2x Caffe rewrites only the conversion function of the image conversion software "waifu2x" using Caffe and is software developed for Windows. Although it can convert with CPU, using CUDA (or cuDNN) can convert faster than CPU.
