Verge3D is a powerful and intuitive toolkit that allows Blender, 3ds Max or Maya users to create immersive web-based experiences. Verge3D can be used to build interactive animations, product configurators, engaging presentations of any kind, online stores, explainers, e-learning...
Verge3D vs Toolbag opinions
Verge comes with interactivity and better support for animation.
Blend4Web is an Open Source tool for interactive 3D visualization on the Internet. It provides Free and Commercial licenses.Discontinued
This product is no longer developed. The developers recommend waiting for a completely new environment called Studio (https://www.blend4web.com/en/community/article/414/).
Maverick Studio is a GPU-accelerated render engine for engineers, designers and artists. Capable of outstanding quality and performance, it packs an impressive list of features at an aggressive price point. Anyone can try it for free, for 30 days.
Visual Designer is an advanced GPU & CPU photorealistic renderer with a unique set of features to handle all the aspects of your creation. It will save a significant amount of time and let you concentrate on refining your designs & arts aesthetics.
FBX Review is a lightweight, standalone software tool for viewing 3D assets and baked animations quickly and efficiently. A free utility, FBX Review lets users view 3D content without using a 3D authoring tool to help speed up asset sharing and review for development teams.