any STEP free
- View
- Inspect
- Validate
Why Open STEP Viewer
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Stay secure
Keep sensitive CAD data local – no uploads to external servers.
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Save time
Load and review even large STEP files in seconds.
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Validate
Ensure geometry accuracy before production.
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Work anywhere
Cross-platform compatibility
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- professional-grade viewer
- lightweight
- free
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- heavy CAD software
- costs
Supported formats versions
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STEP
- AP 214
- AP 242 ed.3
- AP 203
- Domain Model (StepX)
IGES 5.3
QIF3
Features
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Full 3D visualization
- zoom
- pan
- 3D rotate and visual styles
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Clash Detection
Detect clashes in a model
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Measurement
Measure distances
between points
with snapping -
Selection & Property Inspection
Isolate/hide selected
objects -
Expandable model hierarchy tree
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Publish
any STEP model to 3D PDF
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Validation
SDAI (ISO-10303) and Step
Physical File syntax validation -
Section Planes
For detailed model
inspection -
TreeView plugin
For SDAI model exploration and debugging
STEP Forward Partnership
For manufacturers and supply chain leaders: Solve your STEP challenges with confidence.
Learn MoreRoadmap
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2024
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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.
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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.
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2025
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Angle Measurement — Add tools for measuring angles.
Japanese and German viewer versions release.
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by Open Design Alliance
ODA creates SDKs for building complex CAD & BIM applications quickly and easily.
Since 1998.