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Real-CUGAN ncnn Vulkan vs jdPixelUpscaler: catalog facts
Real-CUGAN ncnn Vulkan	jdPixelUpscaler
Free Free and open source under the MIT license.	Free Free and open source under GPL-3.0-only.
Windows, macOS, Linux	Linux
Runs on Intel, AMD, Nvidia and Apple Silicon GPUs Uses Vulkan for GPU inference	Preserves solid pixel blocks when enlarging images Includes command-line arguments and a D-Bus interface
The project describes itself as early in development	Does not account for neighboring pixels or image transitions Linux only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-only
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.