---
title: CAD Assistant Reviews
meta_title: 'CAD Assistant Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter reviews by the users' company size, role or industry to find
  out how CAD Assistant works for a business like yours.
aggregate_rating:
  rating_value: 4.3
  review_count: 2
  scale: '5'
date_modified: '2026-04-02'
parent_category:
  name: CAD
  url: https://www.g2.com/categories/cad
---

# CAD Assistant Reviews
**Vendor:** Open Cascade  
**Category:** [CAD Viewers](https://www.g2.com/categories/cad-viewers)  
**Average Rating:** 4.3/5.0  
**Total Reviews:** 2
## About CAD Assistant
OPEN CASCADE CAD Assistant is a viewer and converter for 3D CAD and mesh files, free for both personal and commercial use. CAD Assistant is based on open source libraries (Open CASCADE Technology, Qt, FreeType, FreeImage, etc.) and employs open formats for CAD and mesh data (STEP, IGES, BREP, DXF, SAT (ACIS), glTF, JT, PLY, STL, OBJ, 3DM).




## CAD Assistant Reviews
  ### 1. Good free tool to viewing CAD and migrating.

**Rating:** 4.0/5.0 stars

**Reviewed by:** Verified User in Online Media | Mid-Market (51-1000 emp.)

**Reviewed Date:** April 10, 2023

**What do you like best about CAD Assistant?**

OpenCascade is a great 3D CAD viewer with an engaging tool with user friendly interface. It is a free to use tool for individuals and could be used for commercial use too.

**What do you dislike about CAD Assistant?**

The team had issues with opening some new formats to be used and for editting. Also some minor lagging. Otherwise it went on smooth without major problems for using the tool.

**What problems is CAD Assistant solving and how is that benefiting you?**

It helped the team to work on large amounts of 3D data seamlessly and efficiently. The best part is that it was free to use and could also be downloaded on smartphones.


## CAD Assistant Discussions
  - [What is CAD Assistant used for?](https://www.g2.com/discussions/what-is-cad-assistant-used-for)

- [View CAD Assistant pricing details and edition comparison](https://www.g2.com/products/cad-assistant/reviews/cad-assistant-review-4833095?section=pricing&secure%5Bexpires_at%5D=2026-07-15+04%3A18%3A48+-0500&secure%5Bsession_id%5D=a2e4b82c-47e8-4ec1-a8e2-6635089ab98d&secure%5Btoken%5D=385843912add10b6d2b9a467f248060d0eba9b771c7b8d931053c2168c33bc71&format=llm_user)

## CAD Assistant Features
**File Options**
- Import files
- Export files
- View 2D files
- View 3D files
- Batch convert files
- File size

**Tools**
- Dimensioning tools
- Change units
- 3D/solid modeling tools

**Design**
- Drawing

## Top CAD Assistant Alternatives
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  - [Autodesk Fusion](https://www.g2.com/products/autodesk-fusion/reviews) - 4.5/5.0 (510 reviews)