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Real-ESRGAN vs Final2x: catalog facts
Real-ESRGAN	Final2x
Free Free and open source under the BSD-3-Clause license.	Free Free to download, with source published on GitHub.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Dedicated model variants tuned for anime versus photo content BSD-licensed and widely reused inside other tools and GUIs	Runs on Windows, macOS and Linux Image upscaling runs locally
Core project is a command-line library rather than a polished GUI app No repository update reflected since mid-2024	Upscaling speed depends on local hardware The project moved repositories, so older links point to the previous location
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: BSD-3-Clause	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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