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Waifu2x-Extension-GUI vs Real-ESRGAN: catalog facts
Waifu2x-Extension-GUI	Real-ESRGAN
Freemium Free for personal use under the project licence. Commercial use requires the paid Premium…	Free Free and open source under the BSD-3-Clause license.
Windows	Windows, macOS, Linux, Command line
It bundles several upscaling and frame-interpolation engines behind one Windows interface and works with AMD, Intel and…	Dedicated model variants tuned for anime versus photo content BSD-licensed and widely reused inside other tools and GUIs
The licence permits personal use only, so commercial use requires buying the Premium build, and the code is…	Core project is a command-line library rather than a polished GUI app No repository update reflected since mid-2024
Downloadable app	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: BSD-3-Clause
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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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