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waifu2x-caffe vs Bigjpg: catalog facts
waifu2x-caffe	Bigjpg
Free Free and open source under the MIT license.	Freemium Free to try, with paid plans for faster and larger enlargements.
Windows, Command line	Android, iOS, Web
Runs image upscaling locally Both a GUI and a command-line tool	Up to 16x enlargement Tuned for illustrations and anime-style art
Windows only Documentation is primarily in Japanese	Large enlargements are slower without a paid plan Images are processed on the vendor's servers
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

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