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Convert STEP to glTF Online: STP to Static Scene

Convert STEP/STP models to a static glTF mesh for viewing. The result is not an editable CAD model.

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Capabilities and limits

  • Convert STEP/STP models to a static glTF mesh for viewing. The result is not an editable CAD model.
  • 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.
On this page

Convert STEP or STP geometry to a static glTF scene. Use it for viewing and web display. Keep the STEP file when the next step needs engineering geometry.

Decide whether glTF is the right deliverable

glTF is a display mesh. It does not replace a STEP file for machining, quoting from solid volume or editing the design.

Convert STEP to static glTF

Choose glTF and download the result ZIP. It contains the glTF scene and any packaged resources. The scene is static triangle geometry, not a CAD feature tree.

Check one known dimension

glTF coordinates are in metres. Reopen the file and compare a known size before you publish or share it. Mesh measurements are approximate.

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.

Open this tool

General steps for uploading, viewing, sectioning, measuring, converting and exporting are explained once in How it works. 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
Convert CAD files — block.step

Sample source and verification

Properties — step-to-gltf.zip · 40 × 30 × 20 mm · 24,000.003 mm³ · 5,200 mm²
Properties — step-to-gltf.zip · 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 · Input formats

Continue with a related task

Original article: CADProps · https://www.cadprops.com/tools/step-to-gltf/

A reproducible example

Convert the generated 20 × 30 × 40 mm STEP block to glTF. Check the scene orientation and dimensions; glTF is a display handoff and does not carry native CAD history.

Repository-generated samples are synthetic test models. Verify your own model's units and geometry before using results.

Supported formats
All formats and limits →

Questions about this task

Can I convert STEP to glTF online?

Yes. Upload a STEP or STP file, choose glTF and download the result ZIP containing the static glTF scene and any packaged resources.

Is the glTF file editable CAD?

No. It is a static mesh for viewing. It does not keep sketches, features or an editable solid model.

What units does the glTF file use?

glTF uses metres. Check a known dimension after conversion so a scale change is not missed.

Do I need an account to convert files?

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.

Related reading

Checks that help with this file.

All guides →
Opening files

STEP File (.step, .stp): What It Is and How to Open It

A STEP file is a neutral ISO 10303 CAD model saved as plain text. See what it contains, how to open a .step or .stp file online, and what to check first.

Read the guide →File formats

GLB and glTF for CAD Handoff: A Viewing Mesh, Not the Source

Use GLB or glTF to show a CAD model. Keep STEP when the recipient must measure solids, machine the part or edit the design.

Read the guide →File formats

GLB vs glTF for CAD: 3D Model Files, Assets and Units

Use a display derivative for the web while keeping engineering geometry and revision records separate.

Read the guide →Troubleshooting

glTF Missing Textures? Fix .bin and Image File Paths

Diagnose glTF files that open with missing geometry resources or textures, package relative .bin and image dependencies correctly, and know what CADProps does and does not render.

Read the guide →