GCAD3D can also be used to edit STEP files.

STEP files can be exported as BREP, BRP, BMS, DAE, SVG, SVGZ, OBJ, DWG, DXF, DXF, UNV, DAT, MED, INP, IGES, IGS, GCODE, TAP, etc. It is also one of the reliable STEP File Viewer Software out there.

One can also be able to zoom, pan, rotate, etc with this stp file viewer. You can choose different aspects from the options such as front view, top view, right view, left view, axonometric view, etc. FreeCADĭifferent draw styles options are also available where you can see the STP file as it is, view as flat lines, wireframe view, shaded view and points view. With FreeCAD you can choose different navigational styles to view STEP files from the options Blender, MayaGesture, OpenInventor, Touchpad, CAD, gesture, and OpenCascade. Some solid calculation options let you calculate volume, surface area, mass, center of gravity, and moment of inertia of 3D models. You can also use it to check and calculate3D distance, distance point plane, 3D coordinates, distance point cylinder, cylinder dimensions and angle between planes. Some display options let you shade/wireframe entire display, view rotation center to display center, etc. You can also find options to rotate views around different axes. You can switch between 2D and 3D views for STEP files. Various viewing options available for you are front, back, top, bottom, left and right. You can rotate, zoom, pan and change view of STEP files. You can also export STEP files as BMP, JPG, PNG, and GIF. It can convert STEP files to VeriCAD, DWG, IGS and DXF and vice versa. Varicad Viewer is a stp file viewer freeware that can be used as a STEP file viewer software. Here are the best STEP file viewer that you can look for.

Autodesk stp viewer