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Upscayl vs Real-ESRGAN ncnn Vulkan: catalog facts
Upscayl	Real-ESRGAN ncnn Vulkan
Free Free and open source under the AGPL. There is no paid tier and no per-image cost.	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Windows, Command line
Runs entirely on your own machine, so no images are uploaded anywhere Batch processing for whole folders	Runs locally on Vulkan-capable GPUs No Python environment needed
Needs a Vulkan-compatible GPU; the project warns many integrated chips will not work Slow on weaker hardware, and memory-hungry on large images	Command line only Repository has seen little activity since 2024
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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