At a glance
| Vendor | Gstarsoft |
|---|---|
| Platforms | Windows |
| Native / common formats | DWG/DXF views, Markup layers, Share links |
| Typical domains | Collaboration, Construction supers, Education |
Product Overview
DWG FastView is a free, cross-platform DWG/DXF viewer developed by Gstarsoft, available on Windows, iOS, Android, and web browsers. It allows engineers, contractors, and project managers to view, measure, and annotate CAD drawings without a full CAD installation.
The tool supports both 2D and 3D DWG/DXF files, with features for layer control, block navigation, and external-reference handling. DWG FastView's mobile and web versions make it particularly useful for field teams who need to review drawings on tablets or smartphones at construction sites.
Key Features
- Multi-platform access: Native apps for Windows, iOS, and Android plus a web-based viewer — no desktop CAD license required.
- Full DWG fidelity: Renders DWG/DXF files with correct layers, linetypes, hatches, and external references.
- Field-ready tools: Measurement, markup, comparison, and PDF export features optimized for mobile use on construction sites.
Core terminology & workflows (3)
Frequently asked questions (3)
How to use markup tools on mobile devices?
Open a drawing, select Edit mode, choose the markup toolbar, and use your finger or stylus to draw clouds, text annotations, or linear dimensions.
Can I view CAD drawing files when my device is offline?
Yes. Open the drawing file while online to cache it in local memory, or manually download it to the Offline tab for disconnected work.
How to sync annotations with the office team?
Save the annotated drawing back to the cloud space. Other team members will receive notifications and see markups instantly.
⚡ Software Guide Self-Test
Verify your high-level understanding of DWG FastView to sync with your learning track progress.
Competitive Positioning
DWG FastView is a free mobile/desktop DWG viewer, competing with AutoCAD Mobile, DraftSight Free, and A360 Viewer in the lightweight CAD viewing market.
vs. AutoCAD Mobile: DWG FastView provides free DWG viewing and basic markup without Autodesk subscription requirements. While AutoCAD Mobile requires an Autodesk account and has editing limitations in free tier, DWG FastView offers measurement and annotation tools at no cost.
vs. web-based viewers: Unlike browser-only viewers (AutoCAD Web, ShareCAD), DWG FastView installs natively on mobile devices for offline access—critical for construction sites and field environments with unreliable internet connectivity.
Format breadth: Beyond DWG/DXF, DWG FastView supports viewing of DWF, PDF, and image formats commonly encountered in construction documentation packages, reducing the need for multiple viewing applications.
Use Cases & Industry Applications
- Construction site review: Foremen and inspectors view drawing details on tablets directly at the work face, verifying dimensions, reinforcement details, and MEP routing against the installed work.
- Client presentations: Architects share DWG files with clients who can zoom, measure, and annotate using the free viewer—no CAD license required for review feedback.
- Subcontractor coordination: Trade subcontractors (electrical, plumbing, HVAC) view full construction drawing sets to understand interfaces without purchasing CAD software.
- Drawing markup and RFI: Field engineers mark up drawings with questions and observations, then share annotated versions back to the design office as Request for Information documentation.
- Archive access: Facilities managers access historical DWG drawings for maintenance planning, space management, and renovation preparation without maintaining active CAD licenses.
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