STP File Viewer Free Online
View and analyze STP 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 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 STP 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
"STP Viewer has revolutionized how I review CAD files. No more installing heavy software - just drag, drop, and view instantly!"
John Smith
Mechanical Engineer
"Perfect for quick model reviews on the go. The browser-based approach means I can check designs anywhere without waiting for downloads."
Sarah Chen
Design Engineer
"Incredibly fast and reliable. The 3D rendering quality is impressive for a web-based tool. Saves me hours every week!"
Mike Rodriguez
Product Designer
"Finally, an STP viewer that doesn't require installation or registration. The interface is clean and the performance is excellent."
David Wilson
CAD Technician
"Essential tool for our team collaboration. We can share and review 3D models instantly without compatibility issues."
Lisa Park
Manufacturing Engineer
"Outstanding performance with large files. Our 50MB+ assemblies load smoothly and the viewing experience is seamless."
James Taylor
Engineering Manager
"STP Viewer has revolutionized how I review CAD files. No more installing heavy software - just drag, drop, and view instantly!"
John Smith
Mechanical Engineer
"Perfect for quick model reviews on the go. The browser-based approach means I can check designs anywhere without waiting for downloads."
Sarah Chen
Design Engineer
"Incredibly fast and reliable. The 3D rendering quality is impressive for a web-based tool. Saves me hours every week!"
Mike Rodriguez
Product Designer
"Finally, an STP viewer that doesn't require installation or registration. The interface is clean and the performance is excellent."
David Wilson
CAD Technician
"Essential tool for our team collaboration. We can share and review 3D models instantly without compatibility issues."
Lisa Park
Manufacturing Engineer
"Outstanding performance with large files. Our 50MB+ assemblies load smoothly and the viewing experience is seamless."
James Taylor
Engineering Manager
"Perfect for rapid prototype reviews. I can quickly share design iterations with clients and get instant feedback without software compatibility issues."
Emily Thompson
Industrial Designer
"Streamlined our quality inspection process. Being able to view STP files directly in the browser has eliminated the need for multiple CAD licenses."
Robert Zhang
Quality Engineer
"Game-changer for project coordination. Our distributed team can now view and discuss 3D models in real-time without expensive software installations."
Maria Garcia
Project Manager
"Invaluable for client presentations. I can showcase 3D models instantly during video calls without worrying about software compatibility issues."
Thomas Brown
Freelance Engineer
"Cross-platform compatibility at its finest. Works seamlessly across Windows, Mac, and Linux browsers - exactly what our diverse tech stack needed."
Jennifer Lee
Technical Lead
"The model analysis features are impressive. Being able to inspect geometry details and measurements directly in the browser saves tremendous time."
Kevin Martinez
3D Modeler
"Perfect for rapid prototype reviews. I can quickly share design iterations with clients and get instant feedback without software compatibility issues."
Emily Thompson
Industrial Designer
"Streamlined our quality inspection process. Being able to view STP files directly in the browser has eliminated the need for multiple CAD licenses."
Robert Zhang
Quality Engineer
"Game-changer for project coordination. Our distributed team can now view and discuss 3D models in real-time without expensive software installations."
Maria Garcia
Project Manager
"Invaluable for client presentations. I can showcase 3D models instantly during video calls without worrying about software compatibility issues."
Thomas Brown
Freelance Engineer
"Cross-platform compatibility at its finest. Works seamlessly across Windows, Mac, and Linux browsers - exactly what our diverse tech stack needed."
Jennifer Lee
Technical Lead
"The model analysis features are impressive. Being able to inspect geometry details and measurements directly in the browser saves tremendous time."
Kevin Martinez
3D Modeler
Key Features
Powerful 3D viewing capabilities
Everything you need to view and analyze STP files online
Technical Specifications
Understanding the capabilities and requirements of our viewer
File Size Support
Maximum file size: 100MB. Recommended: under 10MB for optimal performance. Large files may take longer to load.
Loading Performance
Typical loading times: <1MB files load instantly, 10MB files in 2-5 seconds, 100MB files in 30-60 seconds.
Memory Requirements
Minimum 4GB RAM recommended. Complex models may require 8GB+ RAM for smooth interaction and rendering.
WebGL Support
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 STP Files
Upload your .stp or .step files and start exploring your 3D models instantly. No registration required, completely free.