46.6k stars · AGPL-3.0 · v2.15.0, read from /releases/latest, shown as '25 Dec' — a date that has not yet happened in 2026, so it is 25 December 2025 · Track this in Scout
A desktop program that enlarges a picture and invents the missing detail, entirely on your own machine.
▶Repo detailsthe review · specs · pros & cons · install
What it is
A desktop application for Linux, macOS and Windows. It wraps several image models, including Real-ESRGAN, behind a simple window with a before-and-after slider. It can work through a whole folder at once, and it runs on your own graphics card rather than on a service.
What it is good for. Anyone with an old photograph, a small logo, or a picture from a customer that is not big enough for the page it has to go on. The problem it removes is the paid website that charges per image and keeps a copy. An old thumbnail or a screenshot taken at the wrong size can be brought back up to a usable resolution without paying anybody.
- Everything happens on your machine, so the pictures never leave it.
- Several different models are included, and a photograph and a drawing want different ones.
- It will process a whole folder without you sitting there.
- AGPL-3.0 licence. Using it is free. Putting its code inside a product of your own brings real conditions.
- It is much faster with a graphics card. On a laptop without one, a large picture takes minutes.
- It invents detail. That is the whole point, and it means the result is not evidence of anything. Never use it on a photograph that has to be accurate.
- xinntao/Real-ESRGAN
One of the models Upscayl uses, run from the command line with no window at all.
Track this in Scout - chaiNNer-org/chaiNNer
You build an image pipeline by joining boxes together, which is far more powerful and much slower to learn.
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# Download the installer for your machine from # https://github.com/upscayl/upscayl/releases/latest # There is a .AppImage for Linux, a .dmg for macOS and an .exe for Windows. # On Linux: chmod +x Upscayl-*.AppImage ./Upscayl-*.AppImage # Or from Flathub: flatpak install flathub org.upscayl.Upscayl
