LibreSprite

Introduction

LibreSprite is a free and open source program to create animated sprites. Its main features are:

Sprites are composed by layers & frames (as separated concepts).
Supported color modes: RGBA, Indexed (palettes up to 256 colors), and Grayscale.
Load/save sequence of PNG files and GIF animations (and FLC, FLI, JPG, BMP, PCX, TGA).
Export/import animations to/from Sprite Sheets.
Tiled drawing mode, useful to draw patterns and textures.
Undo/Redo for every operation.
Real-time animation preview.
Multiple editors support.
Pixel-art specific tools like filled Contour, Polygon, Shading mode, etc.
Onion skinning

LibreSprite originated as a fork of the Aseprite application, developed by David Capello. Aseprite used to be distributed under the GNU General Public License version 2, but was moved to a proprietary license on August 26th, 2016.

This fork was made on the last commit covered by the GPL-2.0+ license, and is now developed independently of the proprietary Aseprite.

LibreSprite includes color palettes created by:

It tries to replicate some pixel-art algorithms:

And it uses the following third-party libraries:

This program is distributed under the GNU General Public License version 2, which means that compiled versions can be generated under GPL terms.