It’s that time again: a new version of Paint.NET! This release fixes a few minor bugs and adds a new, much-needed Reduce Noise effect. You can download it from the website at, or use the built-in updater by clicking on Help -> Check for Updates within the application.


  • New: “Reduce Noise” effect.
  • Changed: Ctrl+W will now close Paint.NET if zero images are open.
  • Fixed: In Windows XP, when launching web content, sometimes Internet Explorer was used instead of the user’s chosen default browser.
  • Fixed: The Unfocus effect was not handling alpha values properly.
  • Fixed: The Brightness / Contrast adjustment was only displaying its text in English.
  • Fixed: The /auto parameter for the installer now correctly allows for an automated installation. This was inadvertently broken in 3.20.