# Convert STEP to GLB Online
Convert STEP/STP models to a downloadable GLB for 3D viewing. GLB contains mesh geometry, not an editable CAD feature tree.
Convert STEP/STP models to a downloadable GLB for 3D viewing. GLB contains mesh geometry, not an editable CAD feature tree.
## Upload and inspect your model
Upload a supported file or a ZIP containing the root assembly and its referenced components. The workspace provides the currently validated conversion formats.
## Download the converted file
Select the source and output format, start conversion and download the result. A format with companion files is delivered as a ZIP. Conversion does not recover the original feature tree.
## Partial assemblies remain useful
When components are missing, available geometry can still be viewed and downloaded with an incomplete-assembly warning. Dimensions, volume and mass describe loaded geometry only. A file with no usable geometry cannot be displayed.
**Input formats:** STEP / STP
**Points:** viewing and measuring are free. A new account gets 3 free conversion points; free points are valid for 90 days. One point converts one file to every output format for 30 days, and a failed or incomplete conversion uses none. See [pricing](https://www.cadprops.com/pricing/).
[Open this tool](https://www.cadprops.com/workspace/index.md)
General steps for uploading, viewing, sectioning, measuring, converting and exporting are explained once in [How it works](https://www.cadprops.com/how-it-works/index.md). This page covers what is specific to this file type.
## Real CADProps screenshots
The screenshots show the English interface. Captions and instructions describe the same operations.
Convert CAD files — block.step
[Sample source and verification](https://www.cadprops.com/examples/index.md)
Properties — step-to-glb.glb · 40 × 30 × 20 mm · 24,000.003 mm³ · 5,200 mm²
## When a result needs another check
Viewing can start without an account. Conversion, account storage and share creation require signing in. Temporary files expire after the displayed retention period. Read the privacy statement for server processing and deletion, and the accuracy notes before using numerical results. Do not assume that hiding a part, clipping it or exploding an assembly changes the exported source geometry.
[When a result needs another check](https://www.cadprops.com/accuracy/index.md) · [Input formats](https://www.cadprops.com/supported-formats/index.md)
## Continue with a related task
- [STEP File Viewer Online: Open STP Files, No Account](https://www.cadprops.com/tools/step-viewer/index.md)
- [Convert STEP to STL Online](https://www.cadprops.com/tools/step-to-stl/index.md)
- [Batch STEP Properties: Export CAD Measurements to CSV](https://www.cadprops.com/tools/batch-cad-processing/index.md)
## Capabilities and limits
- Convert STEP/STP models to a downloadable GLB for 3D viewing. GLB contains mesh geometry, not an editable CAD feature tree.
- Conversion preserves supported geometry rather than native parametric feature history; verify output units, completeness and geometry.
- Files are uploaded for server processing; support depends on format, version and geometry.
- Viewing and measuring do not require an account. Free conversion points are valid for 90 days. Sign in to convert, save files across devices or create share links.
## Questions about this task
### How can I convert a STEP or STP file to a GLB model online?
Open a supported STEP or STP model, sign in and choose GLB as the conversion target. Download and inspect the result in the receiving viewer, checking dimensions and loaded components.
### Is my STEP file uploaded to a server during GLB conversion?
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 removes temporary workspace files; closing a view does not.
### Does STEP to GLB preserve CAD features and assembly mates?
No. GLB contains mesh geometry for viewing, not an editable CAD feature tree or native assembly mates. Keep the original STEP file for solid-geometry workflows.
### Are measurements of the GLB mesh as exact as the STEP solid?
No. GLB measurements are mesh approximations. Compare a known dimension with the STEP source and verify units before using the output; incomplete assemblies include loaded components only.
### Do I need an account to download a converted GLB file?
View and measure without an account. Register or sign in to convert, save files and create share links. Recipients can view shared models without an account.
HTML page: https://www.cadprops.com/tools/step-to-glb/
