Upscayl: free open source image upscaler with 51.5k stars replaces Topaz
alex_verem · x · 2026-11-01
Upscayl is a free, open source AI image upscaler (AGPL-3.0) for Linux, macOS and Windows that replaces paid tools like Topaz — open a small or blurry image and export a bigger, sharper one. Note it requires a dedicated GPU; most integrated graphics chips won't run it. 51.5k stars on GitHub.
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