Upscayl

Free AI image upscaler — turn low-res images crisp with one click.

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100% freeRuns on your computerNo watermarksBatch upscaling

Overview

Upscayl is a free, open-source AI image upscaler for Mac, Windows and Linux. Drop in a blurry or low-resolution image and it rebuilds it at 2–4× the size with AI-sharpened detail — product shots, old photos, logos, thumbnails. Everything runs on your own computer: no uploads, no account, no watermarks, no limits.

How it works

1
Download Upscayl
Grab the installer for Mac, Windows or Linux from upscayl.org — it's free, no account needed.
2
Drop in your image
Open the app and drag any blurry or small image onto the window.
3
Pick a model and scale
The default model works great for photos; choose 2× or 4× upscaling.
4
Upscale
Click Upscayl and save the sharpened result. Batch mode handles whole folders.

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