BigPixel is an image editor for pixel art. It is aimed at creating graphics assets for retro or
Minecraft-style 2D games. It supports the creation of pixelated images with 8x8 big pixels in
256 colours including some with transparency. It is an OpenGL-based cross-platform application.
BigPixel currently only supports the BMP image format.
As BigPixel is a plain OpenGL application without platform-specific GUI support, you need to start
it as a command line program and supply it with the name of a BMP image file as its sole command
line argument. If the file exists, it will be opened for editing; otherwise, a new file will be
created. All changes made to an image are persistent — i.e., reflected in the on disk image without
explicit saving.
Left mouse button — draw with current colour
Left mouse button + Shift — erase with transparency
Left mouse button + Control — pick colour from image
Right mouse button — erase with transparency
'W', 'S', 'A', 'D' - enlarge canvas to the top, bottom, left, and right, respectively
'W', 'S', 'A', 'D' + Shift - shrink canvas from the top, bottom, left, and right, respectively
WARNING: There is currently no undo facility! Make copies of image files if you are unsure whether
you like to keep the changes. (However, if you shrink the visible canvas, the removed content can
be restored by simply enlarging the canvas again.)