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Upscaler vs Topaz Gigapixel: catalog facts
Upscaler	Topaz Gigapixel
Free Free and open source under the GPL-3.0 licence.	Paid Commercial software sold by Topaz Labs, with cloud credits for cloud rendering.
Linux	Windows, macOS
Runs fully offline on your own machine Sandboxed with no internet access	Upscaling up to 16x pixels Face recovery for portraits and old photos
Requires a Vulkan-capable GPU Linux only	Paid commercial software Local rendering needs capable hardware
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 26, 2026

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