CAD & 3D Modeling
Architectural blueprints, mechanical STEP models, 3D printing STL meshes, and animation scenes.
Popular CAD & 3D Modeling Extensions
AutoCAD Drawing Database
Industry standard binary CAD file format storing 2D and 3D architectural and engineering designs.
ISO 10303 STEP CAD Model
Universal 3D CAD exchange format for solid model geometry and assembly structure.
Stereolithography 3D Mesh
Raw 3D surface mesh format composed of triangular facets used universally in 3D printing.
Blender 3D Scene File
Complete 3D animation scene file containing meshes, rigs, shaders, and keyframes from Blender.
DXF File Format
DXF (Drawing Exchange Format) is an open vector data standard created by Autodesk to enable CAD data interoperability between AutoCAD and third-party engineering programs.
STP File Format
STP is the shorthand file extension for ISO 10303 STEP files, preserving high-precision parametric B-Rep solid geometry and assembly hierarchies for 3D engineering.
3MF File Format
3MF (3D Manufacturing Format) is an open XML-based compressed archive standard designed specifically for additive manufacturing, storing complete 3D models with materials, colors, build plate items, and slicer metadata.
DST File Format
DST is an industry-standard commercial embroidery machine file format developed by Tajima, containing stitch coordinates, needle jumps, and color change stop codes for automated embroidery sewing machines.
OBJ File Format
OBJ is an open 3D geometry file format originally developed by Wavefront Technologies, containing 3D mesh vertex coordinates, UV texture maps, normals, and face surfaces.
FBX File Format
FBX (Filmbox) is a 3D asset interchange format owned by Autodesk, storing 3D meshes, skeleton armatures, skeletal animations, cameras, lighting, and materials for video games.
IGES File Format
IGES (Initial Graphics Exchange Specification) is an ANSI neutral exchange standard for sharing wireframe models, freeform NURBS surfaces, and CAD engineering drawings.
IGS File Format
IGS is the three-letter file extension shorthand for IGES, storing vector wireframes and NURBS surface definitions for CAD model exchange.
IFC File Format
IFC (Industry Foundation Classes) is an open neutral ISO 16739 standard specification for Building Information Modeling (BIM) data exchange across architectural software.
DGN File Format
DGN (Design) is the CAD file format used by Bentley Systems MicroStation for infrastructure engineering, highway design, utilities, and plant modeling.
SKP File Format
SKP is the native 3D design file format created by Trimble SketchUp for architectural concept modeling, interior design, and urban planning.
SLDPRT File Format
SLDPRT is the native 3D part design file created by Dassault Systèmes SolidWorks, containing parametric features, sketch dimensions, material physics, and solid bodies.
SLDASM File Format
SLDASM is the 3D assembly file format created by SolidWorks, referencing individual .SLDPRT component files, mechanical mates, explosion views, and motion constraints.
IPT File Format
IPT is the native 3D part file format created by Autodesk Inventor for mechanical design, sheet metal fabrication, and parametric surface modeling.
IAM File Format
IAM is the 3D assembly file format created by Autodesk Inventor, linking multiple .IPT component parts with dynamic positional joints and assembly constraints.
CATPART File Format
CATPART is the native 3D part design format created by Dassault Systèmes CATIA V5/V6, utilized globally in aerospace, automotive, and naval manufacturing.
CATPRODUCT File Format
CATPRODUCT is the 3D assembly structure document used in Dassault Systèmes CATIA V5 to manage product assemblies, kinematics, and digital mockups.
3DS File Format
3DS is a legacy 3D graphics mesh format created for Autodesk 3D Studio DOS, storing geometric meshes, material textures, and keyframe camera data.
GLTF File Format
glTF (Graphics Language Transmission Format) is the open-standard "JPEG of 3D" defined by the Khronos Group for efficient runtime loading of 3D scenes in WebGL and AR/VR.
GLB File Format
GLB is the self-contained binary version of the glTF format, bundling JSON scene descriptions, binary geometry buffers, and textures into a single compact file.
PLY File Format
PLY (Stanford Triangle Format) is a 3D file format designed to store 3D data from optical laser scanners and photogrammetry point clouds.
DAE File Format
DAE (COLLADA) is an XML-based schema standard developed by Sony and managed by Khronos Group for exchanging 3D graphics assets across interactive applications.
GRN File Format
GRN is primarily the compiled Granny 3D model format from RAD Game Tools. A GRN file can package meshes, surfaces, texture references, skeletal animation, blend graphs, and events for a game. Older or unrelated applications may use .GRN for Masterpoint bridge data or other text-based records.
ELF File Format
Learn everything about .ELF (CAD & 3D) file extension. Discover software tools to open .ELF files on Windows, macOS, Android, and iOS, convert online, and check file header security.
Top Software for CAD & 3D Modeling
Autodesk AutoCAD
Computer-aided design (CAD) software for precise 2D drafting and 3D architectural modeling.
Blender 3D Suite
Free open source 3D creation suite supporting modeling, rigging, animation, simulation, and rendering.
SolidWorks 3D CAD
Parametric 3D mechanical design software for engineering, simulation, and product data management.
Autodesk Fusion 360
Cloud-based 3D CAD, CAM, CAE, and PCB design software platform for product development.
Trimble SketchUp
Intuitive 3D modeling software for architecture, interior design, civil engineering, and woodworking.
FreeCAD 3D Modeler
Free open source parametric 3D CAD modeler made primarily to design real-life objects of any size.
LibreCAD 2D
Free open source 2D CAD drafting application for Windows, Mac, and Linux.
Rhinoceros 3D (Rhino)
NURBS-based 3D modeling software for industrial design, architecture, and naval engineering.
Autodesk Revit
Building Information Modeling (BIM) software for architects, structural engineers, and contractors.
Graphisoft Archicad
Architectural BIM design software with native macOS and Windows multi-platform support.
MeshLab 3D System
Open source system for processing and editing unstructured 3D triangular meshes.
CloudCompare 3D
Free open-source 3D point cloud and triangular mesh processing software for LiDAR and photogrammetry.
Dassault DraftSight
2D drafting and 3D CAD design solution with familiar DWG file compatibility.
IMSIDesign TurboCAD
2D drafting and 3D CAD modeling software for desktop PCs.
Chief Architect Premier
3D architectural design software for residential home design and remodeling.
Sweet Home 3D
Free interior design application that helps draw home floor plans and arrange furniture in 3D.
Bentley MicroStation
Infrastructure CAD software for 2D drafting, 3D modeling, and engineering design.
Autodesk Navisworks
3D design review software for architecture, engineering, and construction clash detection.
Tekla Structures
BIM software for structural steel and concrete engineering modeling.
Siemens Solid Edge
3D CAD parametric modeling and synchronous technology design tool.
Siemens NX (Unigraphics)
Advanced high-end CAD/CAM/CAE PLM software for aerospace and automotive design.
Alibre Design
3D parametric mechanical CAD modeling software for Windows.
DesignBuilder Energy
Advanced building energy simulation software tool.
RoomSketcher Floor Plans
Easy 2D and 3D floor plan drawer for home interior design.
HomeByMe 3D Planner
Online 3D space planning and home interior decorating software.
Autodesk Tinkercad
Free easy web-based 3D design and 3D printing modeling app.
OpenSCAD 3D Compiler
Programmer-oriented 3D CAD modeler that builds 3D solids from script code.
PTC Onshape
Cloud-native 3D CAD and product data management software.
Vectorworks Architect
Cross-platform CAD and BIM design software for architecture and landscape.
BricsCAD 2D/3D
High-compatibility 2D drafting and 3D CAD modeling software with full DWG support.
QCAD 2D Drafting
Free open source 2D computer-aided drafting application.
Autodesk Inventor
Professional 3D mechanical CAD software for product design and tooling.
PTC Creo Parametric
3D CAD software suite for product design and manufacturing.
Dassault CATIA
Engineering and 3D CAD design software suite used in aerospace and automotive industries.
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