Painting tools

KolourPaint – free raster graphics editor by KDE

KolourPaint is a free, easy-to-use paint program by KDE.

KolourPaint is designed for daily tasks like:

  • Painting – drawing diagrams and “finger painting”.
  • Manipulating Screenshots – acquiring and editing screenshots
  • Image Manipulation – editing screenshots and photos; applying effects.
  • Icon Editing – drawing clipart and logos with transparency.

KolourPaint is written in the C++ programming language.

Features include:

  • Undo/Redo Support (10-500 levels of history depending on memory usage).
  • Tools (single key shortcuts available for all tools).
    • Brush, Color Eraser, Color Picker, Connected Lines a.k.a. Polyline.
    • Curve, Ellipse, Eraser, Flood Fill, Line, Pen, Polygon, Rectangle.
    • Rounded Rectangle, Spraycan, Text.
  • Selections (fully undo- and redo-able):
    • Rectangular, Elliptical, Free-Form shapes.
    • Choice between Opaque and Transparent selections.
    • Full Clipboard/Edit Menu support.
    • Freehand resizeable.
  • Colour Similarity means that you can fill regions in dithered images and photos.
  • Transparency:
    • Draw transparent icons and logos on a checkerboard background.
    • All tools can draw in the “Transparent Colour”.
  • Image Effects:
    • Autocrop / Remove Internal Border.
    • Balance (Brightness, Contrast, Gamma).
    • Clear, Emboss, Flatten, Flip, Invert (with choice of channels).
    • Reduce Colours, Reduce to Greyscale, Resize, Rotate.
    • Scale, Set as Image (Crop), Skew, Smooth Scale, Soften & Sharpen.
  • Close-up Editing:
    • Zoom (from 0.01x to 16x).
    • Grid.
    • Thumbnail.
  • File Operations:
    • Open/Save in all file formats provided by KImageIO (PNG, JPEG, BMP, ICO, PCX, TIFF,…) with preview.
    • Print, Print Preview.
    • Mail.
    • Set as Wallpaper.

Support: Documentation
Developer: KDE
License: BSD License


Learn C++ with our recommended free books and free tutorials.

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