STP File Viewer Free Online
View and analyze STEP files instantly in your browser. Upload .stp or .step files and view them in 3D with our completely free online tool. No registration required, supports files up to 100MB.
Try the STP Viewer
Upload a .stp or .step file to visualize it in 3D
Upload STP/STEP File
Drag file here, or click to select file
3D Viewer Features
How to Use
Get started with STP Viewer in just three easy steps
Upload Your File
Drag and drop your .stp or .step file, or click to select from your device. Files up to 100MB are supported.
Processing
Our advanced engine processes your STEP file and converts it to an interactive 3D model. This usually takes just a few seconds.
View & Interact
Rotate, zoom, and pan around your 3D model. Take screenshots, view in fullscreen, and analyze model details.
Operating Statistics
STP Viewer usage statistics
Real-time statistics showing our product usage
Max File Support
Monthly Active Users
Files Processed
Testimonials
What our customers are saying
John Smith
Mechanical EngineerSTP Viewer has revolutionized how I review CAD files. No more installing heavy software - just drag, drop, and view instantly!
Sarah Chen
Design EngineerPerfect for quick model reviews on the go. The browser-based approach means I can check designs anywhere without waiting for downloads.
Mike Rodriguez
Product DesignerIncredibly fast and reliable. The 3D rendering quality is impressive for a web-based tool. Saves me hours every week!
David Wilson
CAD TechnicianFinally, a STEP viewer that doesn't require installation or registration. The interface is clean and the performance is excellent.
Lisa Park
Manufacturing EngineerEssential tool for our team collaboration. We can share and review 3D models instantly without compatibility issues.
James Taylor
Engineering ManagerOutstanding performance with large files. Our 50MB+ assemblies load smoothly and the viewing experience is seamless.
Emily Thompson
Industrial DesignerPerfect for rapid prototype reviews. I can quickly share design iterations with clients and get instant feedback without software compatibility issues.
Robert Zhang
Quality EngineerStreamlined our quality inspection process. Being able to view STEP files directly in the browser has eliminated the need for multiple CAD licenses.
Maria Garcia
Project ManagerGame-changer for project coordination. Our distributed team can now view and discuss 3D models in real-time without expensive software installations.
Thomas Brown
Freelance EngineerInvaluable for client presentations. I can showcase 3D models instantly during video calls without worrying about software compatibility issues.
Jennifer Lee
Technical LeadCross-platform compatibility at its finest. Works seamlessly across Windows, Mac, and Linux browsers - exactly what our diverse tech stack needed.
Kevin Martinez
3D ModelerThe model analysis features are impressive. Being able to inspect geometry details and measurements directly in the browser saves tremendous time.
Key Features
Powerful 3D viewing capabilities
Everything you need to view and analyze STEP files online
Technical Specifications
Understanding the capabilities and requirements of our viewer
File Size Support
100MB
Maximum file size: 100MB. Recommended: under 10MB for optimal performance. Large files may take longer to load.
Loading Performance
<3s
Typical loading times: <1MB files load instantly, 10MB files in 2-5 seconds, 100MB files in 30-60 seconds.
Memory Requirements
<400MB
Minimum 4GB RAM recommended. Complex models may require 8GB+ RAM for smooth interaction and rendering.
WebGL Support
2.0+
Requires WebGL 2.0 support. Works on all modern browsers including Chrome 90+, Firefox 88+, Safari 14+, Edge 90+.
Browser Compatibility
STP Viewer works on all modern browsers with WebGL support
Chrome
88+
Firefox
85+
Safari
14+
Edge
88+
WebGL 2.0 support required
FAQ
Frequently Asked Questions
Start Viewing Your STEP Files
Upload your .stp or .step files and start exploring your 3D models instantly. No registration required, completely free.