Effortlessly view and inspect PLY (.step, .stp, .stl, .ply, .off, .igs, .iges, .brp, .brep) files online. Marathon OS CAD Viewer delivers fast, secure, and high-performance rendering with no downloads needed.
Drag & drop your 3D files here
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From automotive to aerospace, Marathon OS helps engineering and manufacturing teams collaborate faster, manage complex designs, and drive innovation — all in one place.
Aerospace requires ultra-precise engineering with strict compliance standards. Marathon OS offers secure design sharing, multi-team access, and lifecycle traceability for every part.
Game and VR developers work with 3D assets and environments. Marathon OS enables cross-team collaboration on models, textures, and design feedback — online.
This industry demands precision in micro-scale designs. Marathon OS makes it easy to preview, iterate, and organize detailed CAD files for intricate creations.
Manufacturing relies on precision and process integration, especially with CNC machining. Marathon OS centralizes design files, toolpaths, and revision data in one place.
Robotics blends mechanics, electronics, and software — requiring synchronized development. Marathon OS enables shared CAD views, modular design tracking, and change management.
Architectural and construction firms deal with large blueprints and 3D models. Marathon OS enables online access, commenting, and streamlined sharing of all formats.
Marine engineering involves massive structural components and multi-disciplinary designs. Marathon OS ensures every stakeholder accesses the latest CAD and documentation versions.
The automotive sector designs complex mechanical systems, from engines to interiors. Marathon OS streamlines part management, CAD collaboration, and version control across engineering teams.
Rapid prototyping demands quick file access and iteration. Marathon OS supports file conversion, model previews, and team collaboration for 3D printing workflows.
Electrical engineers manage PCBs, schematics, and layouts with high detail. Marathon OS keeps design files versioned, accessible, and linked to your product lifecycle.
Research projects use simulation models, test data, and analysis files. Marathon OS helps store, view, and collaborate on these assets while preserving data integrity.
From surgical instruments to wearables, medical devices need compliant design systems. Marathon OS helps manage revisions, approvals, and secure file sharing with teams.
Marathon OS CAD Viewer renders any CAD file instantly with a proprietary engine, ensuring seamless, lag-free visualization—no matter the model size.
Marathon OS optimizes real-time CAD visualization with smooth performance, even for large and intricate models.
View STEP, IGES, STL, BREP, and more with precision and clarity—right in your browser.
Skip heavy software—just upload and start viewing instantly.
Files stay private and automatically delete after 24 hours for security.
Designed for engineers, manufacturers, and designers needing quick, high-quality CAD previews.
Effortlessly upload and view CAD files with a high-speed, secure, and scalable tool. Experience smooth, real-time rendering—no software installation required.
Upload STEP, IGES, STL, BREP, and more for instant visualization without delays.
Powered by a proprietary rendering engine, ensuring zero lag even for intricate designs.
View 3D models directly in your browser—no downloads or plugins needed.
Your files are encrypted, private, and automatically deleted after 24 hours for security.
Find answers to common questions about Marathon OS CAD Viewer. Whether you're getting started or looking for advanced features, we've got you covered.