Paint.NET is image and photo manipulation software designed to be used on computers that run Windows. It supports layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. It started development as an undergraduate college senior design project mentored by Microsoft, and is currently being maintained by some of the alumni that originally worked on it. Originally intended as a free replacement for the MS Paint software that comes with Windows, it has grown into a powerful yet simple tool for photo and image editing. The programming language used to create Paint.NET is C#, with a small amount of C++ for installation and shell-integration related functionality.

Download notes: Alternatively you can download the latest Beta version of this software.

Features:

  • Performance in many areas has been substantially improved, and overall memory usage has also been greatly reduced (especially when more than 1 image is open).
  • The user interface has been refreshed with new icons, and visual styling has been enhanced for Aero Glass (Windows 7 / Vista only).
  • Upgraded to use the latest .NET Framework 3.5 SP1, which has many built-in performance improvements.
  • New effect: Blurs -> Surface Blur, by Ed Harvey
  • New effect: Distort -> Dents, by Ed Harvey
  • New effect: Distort -> Crystalize, by Ed Harvey
  • The font manager for the Text Tool has been completely rewritten, resulting in increased performance and better reliability. On Windows 7, the quality of text is much better as a result of using DirectWrite (this also works on Windows Vista if you have installed DirectX 11).
  • The built-in updater now has the ability to download updates in the background, and will wait until you exit Paint.NET to install them. In previous versions, the download happened in the foreground, and you had to wait for the entire process to complete before you could use Paint.NET again.
  • Now includes a Russian translation.

What's New:

  • Fixed: The Line/Curve tool was crashing when drawing vertical lines of particular lengths.
  • Changed: .NET Framework 4.6 is now required, and will be installed if necessary
  • New: Swedish translation
  • Fixed: Title bar now uses the Windows 10 accent color
  • Fixed: Floating windows were not remembering their locations on some non-English systems
  • Improved: Performance of "committing" (finishing) is now up to 10x faster, which greatly improves responsivness for quick drawing operations
  • Improved Shapes tool quality when drawn without antialiasing, with line styles, and at 1 pixel brush width
  • Improved Shapes tool rendering performance on CPUs with many cores (8+)
  • Improved: Installing a "complex" custom Shape no longer causes very long hangs at app startup
  • Improved: Image->Resize is now much faster
  • Fixed: Image->Resize would sometimes cause the main window to flicker or lose focus
  • Fixed: Image->Resize would sometimes do nothing instead of resizing the image to a very large size
  • Fixed: Labels on the vertical ruler were misleading because they were on the wrong side of the tick mark
  • Improved the ruler's performance
  • Fixed: Edit->Copy now works if the data copied to the clipboard is larger than 2GB
  • Fixed: Page Up, Page Down, Home, and End keys now work in the main canvas area
  • Fixed: Paint.NET will no longer incorrectly block Windows from restarting
  • Fixed: Rotate/Zoom no longer crashes on very large images
  • Improved: Reduced CPU/GPU and battery use when the app is not in the foreground
  • Improved: Reduced CPU and battery use of the UI for the Move and Shapes tools
  • Added: Custom Shapes XAML now supports cardinal splines via PolyCurveSegment (a new PathSegment type)
  • Improved: Various performance improvements
  • Fixed: Several rare or uncommon crashes