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Bigjpg vs Upscayl: catalog facts
Bigjpg	Upscayl
Freemium Free to try, with paid plans for faster and larger enlargements.	Free Free and open source under the AGPL. There is no paid tier and no per-image cost.
Android, iOS, Web	Windows, macOS, Linux
Up to 16x enlargement Tuned for illustrations and anime-style art	Runs entirely on your own machine, so no images are uploaded anywhere Batch processing for whole folders
Large enlargements are slower without a paid plan Images are processed on the vendor's servers	Needs a Vulkan-compatible GPU; the project warns many integrated chips will not work Slow on weaker hardware, and memory-hungry on large images
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
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 September 21, 2026

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