Upscayl

Upscayl nails the core promise: free, open-source AI upscaling that works offline. The desktop app is straightforward—download, run, upscale. No account, no ads, no data leaving your machine. For photographers restoring old family photos or designers prepping web assets, that alone is worth it. The new Upscayl Cloud extends utility to mobile and tablets, with faster processing and color accuracy for printing. But the credit system (10 free, then $24.99/300 credits) means heavy users should do the math—each upscale costs roughly $0.08 on Pro, which adds up for batch work. We'd reach for Upscayl when privacy or budget matters most. For one-off tasks, the free trial or desktop app is perfect. For daily batch upscaling of hundreds of images, a flat-rate alternative like Topaz Gigapixel (paid) may be cheaper overall. Where it bites: no raw file support, no video upscaling, and the cloud's rollover policy loses unused credits on cancellation. That said, the open-source community keeps the desktop app improving—batch and double upscaling are now built in. If you can live with the limitations, it's hard to beat free.