Online CAD Tools: Viewers, Measurement & Calculators
Explore CAD and mesh viewing, validated format conversions, dimensions, visual comparison and batch CSV export.
Tools & format notes
29 tools
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SolidWorks viewer
View SolidWorks parts and ZIP assemblies online. Inspect converted geometry, dimensions and loaded-component properties with clear warnings.
Take a closer look →ViewingSTEP viewer
Open STEP and STP files in a real 3D viewer. Inspect parts, units and geometry properties without an account.
Take a closer look →ViewingParasolid X_T viewer
Open Parasolid X_T files online, inspect solid geometry and measure dimensions. Download validated STEP conversion; binary X_B is not enabled.
Take a closer look →ViewingIGES / IGS viewer
Inspect IGES surfaces and solids using Open CASCADE. Read dimensions and surface area; volume and mass require valid closed solids.
Take a closer look →ViewingSTL viewer
Open binary or ASCII STL files, inspect the triangle mesh and estimate dimensions, area and closed-mesh volume.
Take a closer look →ConversionSolidWorks to STEP
Convert SolidWorks parts or ZIP assemblies to downloadable STEP files. Review missing-component warnings before using partial results.
Take a closer look →ConversionSTEP to STL
Convert STEP/STP CAD models to downloadable STL meshes. Check dimensions and choose the correct units before 3D printing.
Take a closer look →ConversionParasolid X_T to STEP
Convert text Parasolid X_T models to STEP online. Check dimensions and solid properties before downloading. X_B remains unavailable.
Take a closer look →ConversionCAD to GLB
Convert STEP/STP models to a downloadable GLB for 3D viewing. GLB contains mesh geometry, not an editable CAD feature tree.
Take a closer look →PropertiesWeight calculator
Estimate mass from valid STEP solid volume and your chosen material density. Inspect the model, verify units and download a property CSV without an account.
Take a closer look →PropertiesVolume calculator
Calculate solid volume from STEP B-Rep geometry. Check model validity, source units and assembly scope before using or exporting the result.
Take a closer look →PropertiesDimensions & measure
Check STEP bounding dimensions in source coordinates and pick approximate point distances in an interactive 3D viewer. Source units are normalized to millimetres.
Take a closer look →PropertiesSurface area
Calculate surface area from STEP geometry, inspect individual parts and export the result in mm². Keep open surfaces and solid-volume requirements distinct.
Take a closer look →ComparisonCompare two files
Compare two 3D models visually and inspect their properties. STEP pairs additionally support automatic solid differences.
Take a closer look →BatchBatch CAD processing
Process a batch of STEP files and export real dimensions, area, volume and density-based mass as CSV.
Take a closer look →ViewingOBJ viewer
View OBJ triangle geometry and approximate dimensions, area and closed-mesh volume without an account.
Take a closer look →Viewing3MF viewer
Inspect 3MF core triangle geometry with declared units and repeated component instances.
Take a closer look →ViewingGLB viewer
Open a static GLB model and inspect geometry, base colors, scene instances and approximate dimensions.
Take a closer look →ViewingGLTF viewer
View static glTF 2.0 geometry. Upload embedded resources directly, or package local buffers and images in a ZIP.
Take a closer look →ViewingZIP CAD package viewer
Upload a ZIP containing supported CAD models or a glTF scene with its local resources, then inspect the package in one workspace.
Take a closer look →ViewingSiemens NX / UG NX viewer
Open Siemens NX / UG NX PRT files online and convert to STEP. Package assembly components in ZIP; missing parts show warnings and properties cover loaded geometry only.
Take a closer look →ConversionSiemens NX / UG NX to STEP
Convert Siemens NX / UG NX PRT to downloadable STEP online. Reuse an uploaded part or packaged assembly; incomplete geometry is flagged and feature history is not restored.
Take a closer look →ViewingAutodesk Inventor viewer
Open Autodesk Inventor IPT, IAM files online and convert to STEP. Package assembly components in ZIP; missing parts show warnings and properties cover loaded geometry only.
Take a closer look →ConversionAutodesk Inventor to STEP
Convert Autodesk Inventor IPT / IAM to downloadable STEP online. Reuse an uploaded part or packaged assembly; incomplete geometry is flagged and feature history is not restored.
Take a closer look →ViewingCATIA viewer
View CATIA V5 CATPart models and CATProduct ZIP assemblies online. Measure converted geometry and download STEP; missing components are reported.
Take a closer look →ConversionCATIA to STEP
Convert CATIA CATPart and packaged CATProduct assemblies to STEP online. Download independently checked geometry with clear warnings for missing components.
Take a closer look →ViewingACIS SAT viewer
View ACIS SAT solids online, inspect dimensions and convert to STEP. SAT text files are enabled; binary SAB is not yet validated.
Take a closer look →ViewingJT solid viewer
Open JT files with readable solid geometry online and convert to STEP. Inspect dimensions and properties; mesh-only JT is not validated.
Take a closer look →Not availableDWG format limits
DWG conversion is not enabled until representative 3D files pass validation. The former 2D preview reader has been retired.
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