Create your drawings with this tool. LodePaint is an easy-to-use painting software designed with full SDL+OpenGL GUI.

Features:
1. Many tools and filters
2. Easy navigation: arrow keys move cursor, zooming while using tools, etc...
3. Focused on pixel editing, textures and sprites
4. Create and edit High Dynamic Range images
5. Easy editing of the alpha channel
6. Do filters on multiple images at once

The license of this software is Free, you can free download and free use this image editing software.