5. Clara.io
3D animation software
Clara.io is actually web-based software. It was so well received by the community that it now counts more than 100,000 users, and has active blog and forum where people share experiences, exchange ideas and solve problems, so beginners can get solutions in just a few clicks, you just need to sign up, for free. Some of the great features of Clara.io are: keyframe-based animation, great sub-object editing, real time and multi-user editing, great variety of mesh tools, cloud rendering, variable lighting settings and many many more. There is also a possibility of importing dozens of 3D file formats, and there is a free gallery of 3D models. Put simply, Clara.io is one of the best open source software not only for beginners but for advanced animators and professionals as well.