Upscayl vs Stableboost

Side-by-side comparison · 2026

Upscayl (free) and Stableboost (freemium) are both AI tools in the Image Generation category. Use the comparison below to decide which fits your workflow and budget.

Upscayl

🎨 Image Generation

Upscayl is a free and open-source AI tool for image upscaling that offers compatibility with multiple operating systems, an easy-to-use interface, advanced AI a

Free

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Stableboost

🎨 Image Generation

Stableboost is a Stable Diffusion WebUI that lets you quickly generate a lot of images so you can find the perfect ones.

Freemium

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Feature

Upscayl

Stableboost

Pricing

Free

Freemium