STEP Viewer is a app that lets you view STEP (.stp, .step) CAD files in 3D on your mobile device.
◆ Key Features
• Convert STEP/STP files to GLB format for 3D rendering
• Touch to zoom, rotate, and pan
• 6-face view change (Front, Right, Back, Left, Top, Bottom)
• Auto-rotation (pauses on touch, resumes after 3 seconds)
• Converted GLB files saved automatically (Download folder)
◆ Supported Formats
• Input: .stp, .step (STEP AP203, AP214)
• Output: .glb (GL Transmission Format Binary)
◆ How to Use
1. Launch the app and tap the folder icon
2. Select a STEP file
3. View the 3D model after conversion
4. Touch to rotate, pinch to zoom
◆ License
This app uses Open CASCADE Technology (LGPL-2.1) library.
https://www.opencascade.com
For inquiries or bug reports, please contact us via email.
Latest Version
1.0.9Uploaded by
Trần Công Vinh
Requires Android
Android 7.0+
Category
Free Tools AppContent Rating
Everyone
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Flag as inappropriateLast updated on Jan 23, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!