What CAD file formats does CADDaddy support?

CADDaddy supports STEP, IGES, STL, 3MF, OBJ, FBX, GLTF/GLB, PLY, DAE, 3DS, and VRML for online viewing. We're continuously adding support for more formats.

Is CADDaddy really free to use?

Yes, CADDaddy offers a free tier with 5 file views per month. Professional plans are available for higher usage with additional features and priority support.

Do I need to install any software to use CADDaddy?

No installation required. CADDaddy works entirely in your web browser on any device - Windows, Mac, Linux, or mobile.

How fast does CADDaddy load CAD files?

Most CAD files load in under 5 seconds. Our optimized viewer provides 60fps performance for smooth 3D navigation.

Can I edit CAD files with CADDaddy?

CADDaddy offers light editing capabilities including transform, scale, and rotate operations. For full CAD editing, we recommend dedicated CAD software.

How do I convert STEP to STL files?

Converting STEP to STL is easy with CADDaddy. Simply upload your STEP file, view it in our online converter, and export as STL. Our free STEP to STL converter works entirely in your browser with no software installation required.

Is my CAD data secure with CADDaddy?

Yes, your files are processed securely. Files are processed in your browser when possible, and server processing uses encrypted connections with automatic deletion.

STL → GLBlocal convert

Free STL to GLB Converter Online

Convert .stl to GLB in your browser — no install, no upload to our servers.

Files are processed locally in your browser — never uploaded. · Open full viewer

Convert STL CAD files to GLB instantly. Your file is parsed locally in the browser with WebAssembly — nothing is sent to a server. Download the converted mesh and open it in any GLB-compatible tool.

How it works

Drop your .stl file on the converter below.
We tessellate the CAD geometry locally in your browser.
Download the GLB file with one click.
Optional: open the original file in the CADDaddy viewer to inspect or measure.

FAQ

Is this STL to GLB converter free?

Yes. Conversion runs in your browser at no cost. No account required to convert and download.

Are my files uploaded to a server?

No. Parsing and conversion happen locally on your device using WebAssembly. Your CAD file never leaves your browser.

Will dimensions be preserved when converting STL to GLB?

STL geometry is tessellated to a triangle mesh for GLB. Envelope size is preserved; exact NURBS surfaces become mesh approximations.