CAD Exchanger provides tools for viewing, converting, analyzing, and working with 3D CAD data.
Alternatives to CAD Assistant
CAD Assistant is a free offline viewer and converter for CAD and mesh files, for personal or commercial use. It supports formats including STEP, IFC, IGES, BREP, glTF, JT, PLY, STL, OBJ and 3DM. You can browse assembly trees, hide components, and inspect properties such as area, volume and centroid; desktop editions also render photo-realistic screenshots with GPU-accelerated path tracing. Processing stays on the device, but commercial imports restrict model export and…
3D-Tool is a Windows CAD viewer and converter for opening, inspecting, measuring, analyzing, and converting 3D models and 2D drawings without a separate CAD system.
ODA File Converter changes .dwg and .dxf files between versions.
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Convert3D
Convert3D converts 3D models between formats, including FBX, OBJ, USDZ, and STEP.
Free planWebAPILinuxmacOS7.0From $899 a year - 5
Spin 3D
Spin 3D converts 3D mesh files between formats for uses such as 3D printing, game modding, design, and animation.
Free planWebmacOSWindows6.8Free plan - 6

HOOPS Exchange
HOOPS Exchange is a C++ SDK for adding 2D and 3D CAD import and export to applications through one API.
Free planAndroidiOSWebLinux6.7Free plan - 7
Open Asset Import Library (Assimp)
Open Asset Import Library (Assimp) loads 3D file formats into a shared in-memory format for further processing.
Free planAndroidiOSLinuxmacOS6.7Free plan - 8
Vertessia
Vertessia reconstructs meshes and scans as editable STEP CAD surfaces, with modes for organic shapes and mechanical geometry.
Free planWebAPI6.7From $19 a month - 9
3D_Evolution
WebAPILinuxmacOS6.6 - 10

3D Model Converter
3D Model Converter is a web tool for viewing and converting mesh files used in CAD, modeling, 3D printing, and web workflows.
Free planWeb6.5From $9.90 a month - 11
Simpel3D
Simpel3D is a web-based converter for 3D files, including STEP, IGES, STL, OBJ and 3MF, producing STL, OBJ or 3MF output.
Free planWeb6.5From $69 a year - 12
Online 3D Converter
Online 3D Converter changes 3D models between supported file formats in a browser.
Free planAndroidiOSWeb6.4Free plan - 13

PolyTrans
macOSWindows6.3$245 one-time - 14

Cadster 3D Converter Core
Cadster 3D Converter Core converts engineering files across CAD, BIM, mesh, point-cloud and other 3D formats.
Free planWebAPI6.2Free plan - 15
3D InterOp
3D InterOp is a paid software development toolkit for translating visualization data, exact B-rep geometry, and metadata between CAD formats.
APILinuxmacOSSelf-hosted6.1 - 16
FBX-glTF-conv
FBX-glTF-conv is a free command-line utility that converts FBX files into glTF files.
Free planLinuxmacOSWindows6.1Free plan - 17
FBX2glTF
FBX2glTF is a command-line converter for Autodesk FBX 3D assets that produces glTF 2.0.
Free planLinuxmacOSWindows6.1Free plan - 18

NuGraf
macOSWindows6.1$495 one-time - 196.0
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meshio
meshio is free, MIT-licensed software for reading and writing unstructured mesh files and converting between supported formats.
Free planLinuxmacOSWindows6.0Free plan - 21
Tetra4D Converter
Windows6.0$758 one-time - 22

Convertpoly
Convertpoly is a web toolkit for working with 3D models directly in a browser.
Free planWeb5.9Free plan - 23
MeshFormat
MeshFormat is a browser-based 3D conversion tool for moving models among CAD, mesh, web, augmented-reality, real-time-engine, and 3D-printing workflows.
Free planWeb5.9Free plan - 24
NEXUS Model Converter
NEXUS Model Converter is a free toolset for creating and viewing batched multiresolution 3D models.
WebWindows5.6 - 25
TransMagic
Windows5.6 - 26
CADdoctor
CADdoctor is the earlier Elysium product identity represented by the 3D-SUITE Editor, a paid set of tools for 3D engineering data and model-based engineering workflows.
WebWindows5.5 - 27

CADfix DX
LinuxWindows5.5 - 28
CrossCad/Ware
CrossCad/Ware is a software development kit for developers building 2D and 3D engineering applications that need CAD data conversion and extraction.
LinuxmacOSWindows5.4 - 29
meshfile
meshfile is a free C library for reading and writing 3D mesh file formats on Linux and UNIX systems.
Linux5.4 - 30
CrossManager
LinuxmacOSWindows4.8
