Surface Explorer 3D plots mathematical surfaces in 3D. User defined surface equations can be explicit, implicit, or parametric. Surface and color equations are specified by user. The user can export to the clipboard, or file formats including VRML, POV, DXF, STL, and output to a printer. Surface Explorer 3D is provided as freeware in the hopes that others can enjoy exploring math equations. Full MFC C++ source code is included as freeware.