STEP tools · No account needed · Temporary file processing
CADProps · CAD tools

SLDPRT & SLDASM Files: SolidWorks Viewer Alternatives

SolidWorks viewer is not available in this release. Read the format notes and ask your sender for a self-contained STEP file.

Not available in this release

This format or conversion is not supported. Ask the sender to export a self-contained STEP file, then inspect it with the STEP viewer.

Open STEP viewer →
Before you use the result

Know what you are looking at.

Open a SolidWorks part or a collected assembly without setting up a new project. Check the file source, selected configuration and component scope before measuring or exporting.

SLDPRT & SLDASM Files: SolidWorks Viewer Alternatives — conceptual guide
Conceptual guide · Not a calculated output
01

Parts and assemblies need different inputs

An SLDPRT part and an SLDASM assembly are not the same upload task. Assemblies can rely on additional files. Keep the referenced parts and subassemblies together, preserve their structure and confirm the intended configuration. An incomplete load should stay visible as a warning rather than produce a misleading total.

02

Know what the display represents

A saved preview, a triangle mesh and imported CAD geometry provide different levels of access. The connected reader should identify which it has loaded. Use geometry-based measurements only when the required data is available; keep imported properties separate from new calculations.

03

Continue from the file you already opened

After inspection, the same source can move into a SolidWorks-to-STEP task, a one-off batch. Reuse the parsed model rather than asking the user to upload the file again.

A related task

Continue with the right tool.

Questions about this task

Know the limits.

Which files can I process?

Supported inputs are STEP/STP, IGES/IGS, STL, OBJ, 3MF, static GLB/GLTF, bounded ZIP packages and DWG 2D previews. Capabilities depend on format. Native CAD formats and downloadable model conversion are unavailable.

Are files uploaded?

Yes. Selecting or dropping files uploads and processes them immediately in every tool. Files are processed temporarily on this server. The workspace displays the configured retention time. Delete in the file menu permanently removes your files; closing a view does not.

Do I need an account?

No. Your temporary workspace uses a browser session cookie. There is no account, subscription or permanent file library.

How are properties calculated?

STEP/IGES use B-Rep geometry; mesh files use approximate triangle properties and require closed consistent meshes for volume. DWG is a 2D preview without physical properties. STL/OBJ coordinates assume mm. Mass uses your chosen density.