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Upscaylwaifu2x-caffe
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 license.

Windows, macOS, Linux Windows, Command line
  • Runs entirely on your own machine, so no images are uploaded anywhere
  • Batch processing for whole folders
  • Runs image upscaling locally
  • Both a GUI and a command-line tool
  • Needs a Vulkan-compatible GPU; the project warns many integrated chips will not work
  • Slow on weaker hardware, and memory-hungry on large images
  • Windows only
  • Documentation is primarily in Japanese
Downloadable app Downloadable app
Open source Open source
License: AGPL-3.0 License: MIT
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked October 2, 2026

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