STEP Viewer
Fast STEP File Viewer
About
View and interact with 3D CAD files directly on your mobile device. Measure dimensions, rotate, zoom, and save models in a common format without needing desktop software.
What's New in STEP Viewer
1.2.2
September 4, 2026
• Select parts — pick the parts you want and highlight them in color • Measure the size of just the parts you selected • Fixed "Save as GLB" doing nothing on iOS • Improved launch stability
MoreDeveloper apps
FAQ
What is STEP Viewer?
STEP Viewer is a mobile application designed to open and view STEP (.step, .stp) CAD files in 3D directly on your phone or tablet. It allows users to interact with models without requiring desktop CAD software.
How do I open a STEP file with STEP Viewer?
You can open a STEP file by tapping it directly in your device's file manager. Alternatively, open the STEP Viewer app and tap the folder icon to browse and select your file.
Can I measure parts of my 3D model with STEP Viewer?
Yes, STEP Viewer includes measurement tools that provide a bounding box with the lengths of the model's sides in millimeters or meters. This helps in understanding the dimensions of your CAD models.
Does STEP Viewer support offline viewing?
The provided information does not specify offline viewing capabilities. However, the app's core function of opening local files suggests it can be used without an active internet connection once the app is installed.
What are the supported file formats for STEP Viewer?
STEP Viewer supports input formats .stp and .step (STEP AP203, AP214). It can also save converted models in the .glb (glTF Binary) output format.
Is STEP Viewer available on Android devices?
STEP Viewer is listed as supported on 'iphone' and 'ipad', and 'ipod'. The provided data does not explicitly mention Android support.
How often is STEP Viewer updated?
The latest version of STEP Viewer is 1.2.2, last updated on September 4, 2026. This indicates a recent update, suggesting the app is actively maintained.
What is the user sentiment for STEP Viewer?
STEP Viewer has a rating of 1.0 stars from 1 rating. This limited feedback suggests potential issues or a very small user base at this time.
