Upscayl
Close matchFreeFree AI enlarger that runs on your own computer. Covers the Gigapixel side of Topaz but does not sharpen or denoise.
Your files: Reads and writes ordinary JPEG, PNG and TIFF files.
Does Topaz Photo AI run on Linux?
Verdict: No
No. Topaz Labs ships Photo AI for Windows 10 and 11 and for macOS only. There is no Linux build, so the closest free option is Upscayl for enlarging plus darktable for noise and sharpening.
Topaz Labs lists Windows 10 and Windows 11, and macOS 12 through 15, on the Topaz Photo page. Linux is not among them and there is no web version. The subscription only covers those two systems.
Photo AI bundles four jobs: enlarging, sharpening, noise removal and face recovery. On Linux you split them. Upscayl does the enlarging, using AI models that run on your own machine with no upload and no account. darktable and RawTherapee both handle noise reduction and sharpening as part of developing a raw file.
Expect a step down in quality. Topaz has spent years training models on a very large photo set, and free tools do not match it, particularly on faces and on very noisy night shots. For ordinary holiday photos and old scans the difference is smaller than the price gap suggests.
Nothing happens to your files. Topaz works on ordinary JPEG, TIFF and raw images and saves ordinary images back, so there is no locked format to rescue.
What to use instead of Topaz Photo AI
darktable
Different way of workingFreeFree raw developer with its own noise reduction and sharpening. Better applied while developing a raw file than to a finished JPEG.
Your files: Opens raw, JPEG and TIFF files.
GIMP
Different way of workingFreeFor manual retouching and resizing when the AI result is not what you wanted.
Your files: Opens JPEG, TIFF, PNG and .psd files.
This doesn't have to stop you
One stubborn program doesn't have to decide the whole question. You can keep Windows on the same PC and restart into it only when you need Topaz Photo AI. Everything else you do can move.
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