Mayo

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3D CAD viewer and converter based on Qt + OpenCascade.

Viewing STEP file and its assembly tree

Cost / License

Free
Open Source (BSD-2-Clause)

Platforms

Mac
Windows
Linux

Viewing glTF file containing textures

Viewing complex STEP file

+2

Application settings with detailed descriptions

Mayo alternatives

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Recent activities

PiotrOsada updated Mayo
5 months ago
PiotrOsada added Mayo as alternative to LibreCAD and FreeCAD
5 months ago
kilgoretrout liked Mayo
11 months ago

Mayo information

Developed by
Unknown
Licensing
Open Source (BSD-2-Clause) and Free product.
Written in
C++
Alternatives
3 alternatives listed
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Supported Languages
- English
- French

AlternativeTo Category

Photos & Graphics

GitHub repository

2,264 Stars
371 Forks
72 Open Issues
Updated Sep 25, 2026

Popular alternatives

Mayo was added to AlternativeTo by X3msnake on Dec 3, 2020 and this page was last updated Apr 25, 2026.

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What is Mayo?

Overview

View and convert 3D files in different formats
Explore assembly trees and view properties
Cross platform: runs on Windows, Linux and macOS
Underlying toolkits: OpenCascade and Qt