Spirit - The animation tool for the web.
VideoScribe - Make your own whiteboard video animations with Sparkol VideoScribe – award-winning video scribing app for PC, Mac and iPad. Free trial available.
Pinreel - Pinreel is lightweight application software that is used to create fun and interesting animation videos by using pro-level templates.
GoAnimate - Make your own animation quickly and economically with GoAnimate. Reach prospects and customers with animated videos online about your business and products.
Marionette Studio - Marionette Studio is an online animation software for beginners and professionals. Animate 2D characters and environments in minutes with no prior skills.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.