Compare software

ON1 Resize AIReal-ESRGAN
Paid

Paid software with a free trial.

 Free

Free and open source under the BSD-3-Clause license.

Windows, macOS Windows, macOS, Linux, Command line
  • Enlarges photos up to 10x
  • Combines AI upscaling with fractal-based enlargement
  • Dedicated model variants tuned for anime versus photo content
  • BSD-licensed and widely reused inside other tools and GUIs
  • Paid, closed-source software
  • Focused on enlargement only, not general editing
  • Core project is a command-line library rather than a polished GUI app
  • No repository update reflected since mid-2024
Downloadable app Downloadable app, Self-hosted
Closed source Open source
License not stated License: BSD-3-Clause
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 26, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.