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MeshLab is made for processing 3D scans. Point clouds can be trianglulated into triangle meshes using various techniques. Models can be smoothed, cleaned and repaired.

GLC_Player is a software used to view 3D models (COLLADA 3DXML OBJ 3DS STL OFF and COFF format are supported) and to navigate easily in these models. With the album management, capture and multi-capture capabilities, HTML export and navigation possibilities, GLC_Player is the most accurate tool to review a lot of 3D models in. GLC_Player is a cross-platform application (Mac, Linux and Windows). GLC_Player is a Qt4 application and uses GLC_Lib.

A free, Open-Source 3D Viewer designed to make it all easier.Massive 3D Format support

A free tool to convert 3D models from one file format to another (i.e. FBX to OBJ or OBJ to STL for 3D printing, DAE to JSON for use with WebGL, ..).

view3dscene is a VRML / X3D browser, also a viewer for other 3D models. Supported formats are X3D, VRML (1.0 and 2.0 (aka VRML 97)), Collada, 3DS, MD3, Wavefront OBJ scenes. Can do collision detection. Can be used as command-line converter from Collada, 3DS, OBJ, MD3 to VRML/X3D. Has built-in ray-tracer. Rendering uses OpenGL. Free software. For Linux, FreeBSD, Mac OS X and Windows.

3D Object Converter, a powerful 3d polygon model translation and interactive viewing shareware tool that allows arbitrary 3d model data to be imported from external sources, exported to various industry standard 3d file formats with great accuracy and quality. The program supports 615 file formats.

CtrlView is a fast, compact, powerful viewer/converter for different 2D/3D raster/vector file formats with the format recognition system. It means that CtrlView analyses content of the file and determines its format. If file format is among supported file types, CtrlView will visualize this file in a correct form. If file type is unknown for CtrlView, it will be visualized in ASCII file form or in binary file form. Any file also can be opened manually as ASCII or binary so you have an ability to look inside the file at any time. -----------Free CtrlView online version (beta) is available. Nothing to download and install on your computer! Just upload your file and view/convert it directly in your browser. »

quick3d - A Universal 3D File Format Viewer and Converter.quick3D software products provide 3D file format viewing and converting solutions. An expansive set of 3D file format types are supported for viewing and translating.

3D File ConverterSpin 3D converts between STL, 3DS, 3DP, 3MF, OBJ and PLY mesh file formats. No matter which program you use to create your 3D models and 3D designs, you can convert to your desired output format.