Best Free Cad Viewer Apps

224+ iOS apps curated and reviewed

3.7 avg rating
20 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our free cad viewer list covers 224+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Free Cad Viewer

AutoCAD#1

AutoCAD by Autodesk

DWG Viewer & Editor
Editor's Choice
📊 Productivity
4.4😞(6.3K ratings)
FreeIn-App Purchases
AutoCAD screenshot 1
AutoCAD screenshot 2
AutoCAD screenshot 3
AutoCAD screenshot 4
AutoCAD screenshot 5
AutoCAD screenshot 6

Access and edit CAD drawings on the go with this official application. It provides essential drafting and design tools for creating, updating, and sharing 2D drawings from any device. Collaborate with teams and simplify workflows by accessing files from various cloud storage services.

What We Love

  • 🚀 Intuitive and easy to learn
  • 📱 Convenient mobile solution
  • 👍 Great for site visits and field work
  • 🔍 Useful for viewing and marking up drawings

Room to Improve

  • 🐛 Crashes frequently
  • 🔒 Difficult login and account management
  • 🔍 Limited functionality compared to desktop version
DWG FastView-CAD Viewer&Editor#2

DWG FastView-CAD Viewer&Editor by Gstarsoft Co., Ltd

* Support 2D/3D CAD formats
Strong Contender
📊 Productivity
3.7😐(50 ratings)
FreeAdsIn-App Purchases
DWG FastView-CAD Viewer&Editor screenshot 1
DWG FastView-CAD Viewer&Editor screenshot 2
DWG FastView-CAD Viewer&Editor screenshot 3
DWG FastView-CAD Viewer&Editor screenshot 4
DWG FastView-CAD Viewer&Editor screenshot 5
DWG FastView-CAD Viewer&Editor screenshot 6

This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.

What We Love

  • 🚀 Fast and efficient
  • 👍 Easy to use and intuitive
  • 💡 Convenient mobile CAD viewing and editing
  • 🚀 Quick file loading

Room to Improve

  • 🐛 Crashes and freezes
  • 💰 Subscription model with limited free features
  • 🔒 Lack of customer support and communication

More Free Cad Viewer apps to explore

4
CAD Reader-View & Measure DWG
CAD Reader-View & Measure DWG
CAD Reader-View & Measure DWG
DWG & PDF viewer
Free

This application allows users to view, measure, and annotate CAD files and PDFs. It supports multiple drawing formats and offers tools for collaboration, including image and voice annotations. Convert PDFs to CAD and manage layers with advanced features.

View DWG, DXF, and PDF filesScale drawing and measure area/lengthAdd image, voice, and text annotations
📊 Productivity
(22)
free with in-app purchases
5
SketchUp - 3D Modeling
SketchUp - 3D Modeling
SketchUp - 3D Modeling
Interior Design & Architecture
Free

This platform offers intuitive 3D modeling tools for design enthusiasts and professionals. Visualize concepts, create photorealistic visuals, and even use AI to generate design ideas. Scan real-world spaces and view your creations in augmented reality.

3D modeling toolsGenerative AI designsRoom planner & space design
🎨 Graphics & Design
(17K)
free with in-app purchases
6
STL Simple Viewer
STL Simple Viewer
STL Simple Viewer
Quickly view 3D STL CAD models
Free

Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.

View ASCII and Binary STL filesLoad STL from ZIPRotate, pan, and zoom
📊 Productivity
(721)
free with in-app purchases
7
Autodesk Fusion
Autodesk Fusion
Autodesk Fusion
by Autodesk
Free

Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.

View over 100 file formatsCollaborate on 3D designsComment on project activities
📊 Productivity
(4.1K)
free
8
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
DWG Viewer - DWG/DXF Reader
Free

View, convert, and print CAD drawings on your mobile device. Supports DWG, DXF, and PDF formats with iCloud sync and Wi-Fi printing. Ideal for architects, engineers, and construction professionals.

Fast DWG/DXF viewingConvert drawings to PDFWi-Fi printing
📊 Productivity
(33)
freemium
9
SnapCAD Viewer
SnapCAD Viewer
SnapCAD Viewer
Lightweight DWG/DXF Viewer
Free
📊 Productivity
(0)
10
ARES Touch: DWG Viewer & CAD
ARES Touch: DWG Viewer & CAD
ARES Touch: DWG Viewer & CAD
Read, Modify & Annotate in DWG
Free

This CAD software allows professionals to view, create, annotate, and modify DWG drawings on mobile devices. Free users can access viewing and basic annotation tools, while subscribers unlock hundreds of advanced creation and editing features.

View, create, and modify DWG drawingsAnnotate with text, dimensions, and revision cloudsSynchronize files with cloud storage
📊 Productivity
(143)
free with in-app purchases
11
CAD Viewer Editor
CAD Viewer Editor
CAD Viewer Editor
DWG & DXF Drawings: View, Edit
Free
🎨 Graphics & Design
(0)
12
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
View CAD files on iPhone, iPad
Free

View, analyze, and collaborate on 3D CAD files directly from your mobile device. Supports numerous popular CAD formats and offers tools for measurements, reporting, and team feedback.

View 3D CAD parts and assembliesSupport for numerous CAD file formatsOffline viewing of downloaded files
🔧 Utilities
(1)
subscription
13
SimLab CAD Viewer
SimLab CAD Viewer
SimLab CAD Viewer
by Simulation Lab Software
Free

View 3D CAD and architectural models on your mobile device. Navigate complex scenes with intuitive controls, explore different model configurations, and access files from various cloud storage services and email.

View 3D CAD and architectural modelsNavigate 3D scenes (rotate, pan, zoom)View different model configurations
🔧 Utilities
(5)
free
14
3D CAD Model Viewer
3D CAD Model Viewer
3D CAD Model Viewer
by Machine Research Corporation
Free

Easily view, analyze, and share 3D CAD models and drawings from various file formats. Organize your models into a catalog for quick reference and access job information. Streamline your quoting process by leveraging past projects and profitability data.

View models from any angleApply bounding box for measurementsMarkup and annotate models
💼 Business
(13)
free
15
ZWCAD Mobile - Mobile CAD
ZWCAD Mobile - Mobile CAD
ZWCAD Mobile - Mobile CAD
DWG viewer and editor
Free

This application allows users to view, edit, and share CAD drawings on their mobile devices. It supports multiple file formats, offers precise measurement tools, and includes a wide range of editing and drawing functions. It's designed for professionals in architecture, engineering, and construction.

View and edit DWG filesSupports DWF, DXF, PDF formatsPrecise measurement tools
📊 Productivity
(302)
free with in-app purchases
16
Onshape 3D CAD
Onshape 3D CAD
Onshape 3D CAD
Speed Up Your Product Design
Free

This professional CAD platform enables real-time collaboration on product design from any device. It offers parametric modeling tools, secure cloud storage, and version control, streamlining the design process for teams and individuals. Supports students and educators with free access for non-commercial projects.

Parametric modeling toolsReal-time team collaborationCloud-based data management
📊 Productivity
(396)
free with in-app purchases
17
DXF Viewer: CAD & Measure Tool
DXF Viewer: CAD & Measure Tool
DXF Viewer: CAD & Measure Tool
Open & Measure DXF/CAD Files
Free
📊 Productivity
(0)
18
CAD Converter Viewer
CAD Converter Viewer
CAD Converter Viewer
CAD to PDF & Image Converter
Free
🎨 Graphics & Design
(0)
19
Vector Viewer: SVG DXF CAD PDF
Vector Viewer: SVG DXF CAD PDF
Vector Viewer: SVG DXF CAD PDF
DXF CAD EPS Measure & Inspect
Free
🔧 Utilities
(0)
20
uMake: 3D CAD Modeling, Design
uMake: 3D CAD Modeling, Design
uMake: 3D CAD Modeling, Design
Sketch, Model & Design with AI
Free

Create professional 3D CAD models, architectural designs, and product concepts on your iPad or iPhone. This app offers industrial-grade modeling tools, AI-powered design features, and extensive resources for designers and engineers.

NURBS-based 3D modelingAI design tools for styling and renderingArchitectural and interior design tools
🎨 Graphics & Design
(4K)
free with in-app purchases