ASEPRITE (aka Allegro Sprite Editor) is an open source program to create animated sprites & pixel art.

ASE (now ASEPRITE, aka Allegro Sprite Editor) is an open source program to create animated sprites & pixel art. Sprites are little images that can be used in your website or in a video game. You can draw characters with movement, intros, textures, patterns, backgrounds, logos, color palettes, isometric levels, etc.

What you can do?

• Edit sprites with layers and frames.
• Edit RGBA, Grayscale and Indexed images (256 color palettes).
• Load/save sprites in these formats: .GIF, .FLC, .FLI, .PNG, .BMP, .PCX, .TGA, .JPG, and .ASE
• Load/save animations in sequence of bitmaps (frm00.pcx, frm01.pcx, ...).
• Tiled drawing mode to draw patterns and textures.
• Undo/Redo support for every operation.
• Special tools like Blur, Jumble, Convolution Matrices.
• Multiple editor support.
• Onion skinning support.