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Bigjpg vs waifu2x Snowshell: catalog facts
Bigjpg	waifu2x Snowshell
Freemium Free to try, with paid plans for faster and larger enlargements.	Free Free and open source under the MIT licence.
Android, iOS, Web	Windows
Up to 16x enlargement Tuned for illustrations and anime-style art	One interface for waifu2x, Real-CUGAN and Real-ESRGAN Drag and drop of multiple files or folders
Large enlargements are slower without a paid plan Images are processed on the vendor's servers	Windows x64 only Depends on the separate upscaler engines for results
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 2, 2026

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