Some free image upscale tools

Please note many require download but not all.

1. QualityScaler:

• QualityScaler GitHub

• QualityScaler on SourceForge

1. Upscayl:

• Upscayl GitHub

1. Upscaler:

• Upscaler GitHub

1. RealScaler (Windows):

• RealScaler GitHub

1. μScale:

• μScale GitHub

1. SuperImage (Android):

• SuperImage on SourceForge

1. Upscale:

• Upscale GitHub

1. PNG Upscale:

• PNG Upscale on SourceForge

1. UltraScaler (Windows):

• UltraScaler GitHub

1. ImageUpscaler:

• ImageUpscaler GitHub

1. avir:

• avir GitHub

1. Final2x:

• Final2x GitHub