PicUp vs upload-based tools

Both enlarge photos. The difference is whether the file leaves your device.

PicUp

PicUp is a free image enlarger that runs locally in your browser. It supports JPG, PNG, and WebP, and images are never uploaded.

  • Free, no sign-in
  • 2x to 6x
  • Real-ESRGAN locally when possible
  • Speed depends on this device

Typical upload tools

Most online enlargers send the file to a server and return a result. That is convenient for public assets, but riskier for ID photos and unpublished designs.

  • Often faster because of cloud GPUs
  • Requires an upload
  • May require an account or payment

How to choose

If the photo cannot leave the device, use PicUp. The core difference between local and server super-resolution is whether data leaves the browser.