多媒体设计 免费
Open every 3D file on your PC. No upload, no account, no internet.
Open3D opens 22 file formats in seconds. Drop a model, drag to
orbit, get to work.
Looking for a Windows 3D Viewer replacement? Microsoft removed
its built-in 3D Viewer app in June 2026. Open3D opens the same
files plus 16 formats Microsoft never supported.
SUPPORTED FORMATS
• GLB, GLTF — the web's 3D standard, used by Sketchfab and Khronos
• STL, 3MF, AMF — 3D-printing meshes
• G-code (.gcode, .gco) — preview your sliced toolpath before printing
• OBJ — the universal mesh format, with .mtl and texture support
• FBX — Maya, Blender, Unreal, Unity, with rigs and animation
• PLY — point clouds from photogrammetry, LiDAR, 3D scans
• PCD, XYZ — point clouds from LiDAR and scanners
• DAE (Collada) — SketchUp, Daz, older Blender
• 3DS — legacy Autodesk
• VRML (.wrl) — classic 3D web and CAD export format
• VTK (.vtk, .vtp) — scientific and simulation meshes
• DXF, DWG — AutoCAD drawings (2D plans render top-down) and 3D entities
• STEP / STP — SolidWorks, Fusion 360, CATIA, Onshape
• IGES / IGS — CAD interchange standard
• BREP — OpenCASCADE solid models
• FCStd — FreeCAD projects, with part colours
• 3DM — Rhino models
• IFC — BIM building models from Revit, ArchiCAD and more
NEW: AI Tools (MCP), experimental
Connect Open3D to Claude Desktop, ChatGPT/Codex, Cursor, Windsurf, Zed or Antigravity in one click. Your AI assistant can open your 3D files, take screenshots, measure, drop pins and even edit meshes, all locally on your PC. Off by default; turn it on in Settings → AI Tools.
TOOLS THAT EARN THE INSTALL
• Measure — click two points, get the real-world distance in mm
or inches
• Cross-section — slice through the model along X, Y or Z with a
precise slider
• Print-readiness check — manifold, normals, volume and dimensions
• High-detail CAD — smoother curves and fillets for STEP, IGES,
BREP, FreeCAD and IFC
• Render modes — Solid, Wireframe, X-ray
• Real HDR lighting — 5 image-based scenes for accurate reflections
• Lighting console — ambient, hemisphere, directional and HDR
intensity sliders
• 6 solid-color backgrounds plus 5 HDR scenes
• Screenshots and animated GIF capture
• Auto-rotate, real-scale grid
BUILT FOR
• 3D-printer owners — STL, OBJ, 3MF, AMF with manifold and thickness
checks before you slice, plus G-code preview after
• CAD pros — STEP, IGES, BREP, FreeCAD, Rhino, DXF, DAE load with
no conversion step
• Game designers — GLTF, FBX with rigs and animation tracks
• Architects — IFC/BIM models, DXF floor plans, STEP and IGES
building elements
• Photogrammetry and 3D scanning — PLY, PCD and XYZ point clouds
rendered as proper splats
WINDOWS INTEGRATION
• Right-click any .glb, .stl, .step, .ifc, .3dm, .dxf, .obj file in
Explorer and "Open with Open3D"
• Set Open3D as the default handler for any supported format
• Files load instantly from local disk — no cloud round-trip
PRIVACY YOU CAN VERIFY
Your files never leave the device. The viewer is fully local —
open your network activity tab while loading a model and nothing
crosses the wire. No accounts, no sign-up, no model uploads, no
usage tracking on your files. A 3D viewer that respects your work.
OPEN3D vs MICROSOFT 3D VIEWER
Microsoft 3D Viewer was removed in June 2026. Open3D opens everything
Microsoft 3D Viewer did, plus STEP, IGES, IFC, Rhino, FreeCAD, DXF,
G-code and more — formats Microsoft never supported. Free, no sign-up,
no telemetry.
Drop a file and try it.
Open3D Viewer is an independent product and is not affiliated with the Open3D open-source library (open3d.org).
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