View any STEP free

Open STEP Viewer bSI Partner

Professional-grade STEP viewer developed by Open Design Alliance

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Supported STEP versions

  • AP 242 ed.3
  • AP 214
  • AP 203
  • Domain Model (StepX)

Features

  • Clash Detection

    Detect clashes in a model

    Clash Detection
  • Measurement

    Measure distances
    between points
    with snapping

    Measurement
  • Full 3D visualization

    with zoom, pan,
    3D rotate and visual
    styles

    Full 3D visualization
  • Expandable model hierarchy tree

    Expandable model hierarchy tree
  • Publish

    any STEP model
    to 3D PDF

    Publish
  • Selection & Property Inspection

    Isolate/hide selected
    objects

    Selection & Property Inspection
  • Section Planes

    For detailed model
    inspection

    Section Planes
  • TreeView plugin

    For SDAI model exploration and debugging
    Query Plugin

    TreeView plugin

Roadmap

  • 2024

      • Workplanes for Measurements — Support measurement tools with defined workplanes.

      • Fly Camera Mode — Enable free-fly camera navigation.

      • Query Plugin for Tree View — Search for objects by attribute values.

      • Layers Manager — Manage STEP layers if available
        in the file.

      • Extended UIDs Support — Support unique identifiers
        for StepX files.

      • Holes Visualization
        Visualize hole details
        in models.

      • User-Defined Properties — Display custom properties
        in the Properties Tab.

      • Custom AP242 Schemas — Support user-defined AP242 schemas.

      • Shell Viewer and Curve Dump Plugins — Tools for shell
        and curve analysis.

      • BRep Analyzer Plugin — Compare body topology using UUID data, integrated with Tree View.

  • 2025

      • Angle Measurement — Add tools for measuring angles.

Download Open STEP Viewer

  • Version 25.11

    Windows x64

    Windows x64

  • Also available on:

Open Design Alliance

ODA creates SDKs for building complex CAD & BIM applications quickly and easily. Since 1998.

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