StepPreview
The missing QuickLook & Thumbnail provider for STEP files on macOS.
Workflow Redefined
Stop opening CAD software just to find the right part. See everything instantly.
Instant Thumbnails
Beautiful, high-fidelity 3D thumbnails for every STEP file in your folders. Works exactly like native images.
QuickLook Support
Press space to peek inside. Get a clear view of your 3D models without launching heavy applications.
Native & Clean
Built with Native Swift rendering and optimized for macOS. High-performance, seamless integration directly in Finder.
Buy Once. Own it Forever.
One-time purchase, no subscriptions. Professional utilities should be simple, affordable, and yours forever.