Industries we serve

CAD viewers built for every engineering discipline

Marathon OS opens, inspects, and reviews CAD files for teams across automotive, aerospace, manufacturing, and beyond — directly in the browser, with no installs.

32+

Industries

50+

File formats

300MB

Per file

Pick your industry

Each industry page includes part libraries, supported file formats, and tailored review workflows.

32 industries

Don't see your industry?

Marathon OS supports any team working with 3D engineering files. Get in touch and we'll help configure the right viewer for your workflow.

Marathon-OS Design Hub

Everything you need to design faster, smarter, and with more impact.

Lcd Printer | High-Quality CAD Model
Lcd Printer | High-Quality CAD Model
Hanger Ape 1 | 3D CAD Engineering Model
Hanger Ape 1 | 3D CAD Engineering Model
Asian Inspired Cannon Barrel | 3D CAD Engineering Model
Asian Inspired Cannon Barrel | 3D CAD Engineering Model
Hexaflora Decorative Wooden Lantern 1 | 3D CAD Engineering Model
Hexaflora Decorative Wooden Lantern 1 | 3D CAD Engineering Model
Cinzeiro | 3D Engineering Design File
Cinzeiro | 3D Engineering Design File
3D Printed Universal Covid-19 Contact Minimization Tool - Downloadable CAD Representation
3D Printed Universal Covid-19 Contact Minimization Tool - Downloadable CAD Representation
Rubber Tire Insert RC 1 for 3D Printing with TPU Material
Rubber Tire Insert RC 1 for 3D Printing with TPU Material
3D Printed Drill Bit Holder for Sizes 1 to 13 mm
3D Printed Drill Bit Holder for Sizes 1 to 13 mm
Edge Lamp 1 | 3D CAD Engineering Model
Edge Lamp 1 | 3D CAD Engineering Model
Sheath For Global Gs 38 9Cm 1 | 3D CAD Engineering Model
Sheath For Global Gs 38 9Cm 1 | 3D CAD Engineering Model
FL SUN SR Industrial 3D Printer Model
FL SUN SR Industrial 3D Printer Model
3D Printed Protective Case for Environmental Sensor
3D Printed Protective Case for Environmental Sensor
Mouse Replica 1 | 3D CAD Engineering Model
Mouse Replica 1 | 3D CAD Engineering Model
3D Printed Adapter O20 Mm Pvc Pipe To Garden Hose | 3D CAD Engineering Model
3D Printed Adapter O20 Mm Pvc Pipe To Garden Hose | 3D CAD Engineering Model
The Barbabpapa 3-In1 Shopping Cart Token Keychain | 3D Engineering Design File
The Barbabpapa 3-In1 Shopping Cart Token Keychain | 3D Engineering Design File
Flower Of Life Sphere | 3D Engineering Design File
Flower Of Life Sphere | 3D Engineering Design File
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