LazPaint – free and open source, cross-platform light editor of images with multiple tools and filters
Review
- LazPaint is positioned as an analogue of PaintBrush and Paint.Net; 
- Support for all major file formats, including multi-layer raster images and 3D files; 
- It is possible to save/export an image/drawing to various graphic formats; 
- Print support; 
- You can zoom the image; 
- Support for undo/redo the last 200 operations/actions.
Manipulation with the image:
- Resize image/drawing; 
- The functions of rotating clockwise/counterclockwise (90/180 degrees) and mirroring the image horizontally and vertically are available; 
- The “Resample” function is available.
Color manipulation:
- Colorize: set the color of an image while preserving intensities; 
- Shift colors: cycle colors and change color less (saturation); 
- Intensity: make colors lighter or darker without making them white; 
- Lightness: make colors lighter or darker by making them whiter; 
- Normalize: use the whole range of each color channel and alpha channel; 
- Negative: invert colors (with gamma correction); 
- Linear negative: invert colors (without gamma correction); 
- Grayscale: converts colors to grayscale with gamma correction.
Filters. Filters can be applied to the whole image or to the active selection:
- Radial blur: non directional blur; 
- Motion blur: directional blur; 
- Custom blur: blur according to a mask; 
- Sharpen: makes contours more acute, complementary to Smooth; 
- Smooth: softens whole image, complementary to Sharpen; 
- Median: computes the median of colors around each pixel, which softens corners; 
- Contour: draws contours on a white background (like a pencil drawing); 
- Emboss: draws contours with shadow; 
- Sphere: spherical projection; 
- Cylinder: cylinder projection; 
- Clouds: add clouds of the current pen color.
- Drawing tools: pen, eraser, eyedropper, fill with solid color/texture/gradient, add text, warp, various selection tools, draw geometric shapes (rectangle, ellipse, polygon, curve), lines (poly lines, curves); 
- Support for scripts, including custom scripts; 
- Support for layers with basic management options; 
- There are two design themes: light and dark; 
- There is an option to show/hide toolbars; 
- Support for keyboard shortcuts.
Screenshots Software
Installation
The software LazPaint is available for installation on Linux, Windows and macOS.
| Installation method | OS | 
|---|
| Deb | Ubuntu* 16.04/18.04/19.04/20.04, Linux Mint 18/19, Debian | 
| EXE | Windows | 
| DMG | macOS | 
*Ubuntu (GNOME), Kubuntu (KDE), Xubuntu (XFCE), Lubuntu (LXDE)

Install Software via Deb package

Install Software via EXE package on Windows

Install Software via DMG package for macOS
Software Information
| Language Interface: | English, Russian, Deutsch, Spanish, French and others | 
| Description version: | 7.1.6 | 
| Developer: | Circular, FabienWang и Lainz | 
| Programming language: | Pascal | 
| License: | GPL v3 | 
| Software website: | lazpaint.github.io | 
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