Free AutoCAD & DWG CAD Viewer Online
Open, inspect, and measure 2D architectural blueprints and 3D CAD drafting files with free 3D orbit, magnetic snapping, and zero server uploads.
Direct Answer & Pipeline Overview
AutoCAD & DWG 2D/3D CAD Viewer is a specialized, 100% client-side engineering utility developed by Atlyxen Studios. It processes calculations and conversions directly inside your browser memory using hardware-accelerated WebAssembly and WebGL, guaranteeing instant results with zero server file transfers and zero data retention.
How to Use the AutoCAD & DWG 2D/3D CAD Viewer
Upload or Select a CAD Drawing
Drag and drop your DWG, DXF, DWF, DWT, or PLT file into the viewport, or click one of the built-in sample drawings.
Orbit Freely in 3D or Pan in 2D
Click 3D Orbit or hold Shift + Drag with the mouse to rotate freely around the model in 3D perspective space.
Measure with Magnetic Object Snapping
Activate the Measure tool (Press M). Hover near corners, edges, or centers to see the green magnetic snap glyph, then click to measure with 100% accuracy.
Inspect Dimensions & Switch Units
Check the real-time Dimensional Information panel for Width, Height, Area, and Perimeter. Switch units between mm, cm, m, in, or ft.
Export Snapshots or Vector Output
Export high-resolution PNG blueprints or inspect layers directly in your browser.
Key Technical Capabilities
Universal format support: DWG (R13 to 2018+), DXF, DWF, DWFx, DWT, PLT/HPGL, SVG, STL, and OBJ
Mouse-Controlled Free 3D Orbit: Rotate freely in 3D with left mouse drag, smooth damping, and quick Isometric / Top / Front camera presets
Magnetic Object Snapping (OSNAP): Automatically snaps measurement points to Endpoints (squares), Midpoints (triangles), Centers (circles), and Quadrants
Dimensional Information & Units Dashboard: Inspect Width (ΔX), Height (ΔY), Area, Perimeter, and Diagonal with instant unit conversions (mm, cm, m, in, ft)
100% Client-Side WebAssembly: Proprietary drawings never leave your computer or upload to a server
Interactive Layer Management: Toggle layer visibility and inspect AutoCAD Color Index (ACI) swatches
Dual Viewport Modes: Seamlessly switch between 2D Orthographic Plan view and 3D Perspective Orbit view
AutoCAD Crosshairs & WCS Origin Triad: Full-canvas drafting crosshairs with central pickbox and World Coordinate System triad
AutoCAD Keyboard Shortcuts: Shift+Drag for instant orbit, O for 3D, P for 2D, F3 for Snap, Z for Zoom Extents, M for Measure
Built-in Sample Library: Structural Column & Cross-Ties (8.3223 × 8.3223), Architectural Floor Plan, Gearbox Assembly, and Civil Grid
Frequently Asked Questions
How do I control the 3D orbit with my mouse?
Click the 3D Orbit button (or press O or 3). Then simply click and drag with your left mouse button to rotate freely in any 3D direction. You can also drag with your right mouse button to pan, and scroll the wheel to zoom.
How does magnetic snapping (OSNAP) work during measurement?
When the Measure tool is active, the viewer automatically detects geometric Endpoints (green square), Midpoints (green triangle), Centers (green circle), and Quadrants. Moving your mouse within 20 pixels magnetically locks onto the exact vertex for 100% precision.
Can I view AutoCAD DWG files without installing AutoCAD or software?
Yes! Atlyxen Tools uses client-side WebAssembly (compiled from Rust acadrust) to read and parse DWG binary databases directly in your browser without requiring Autodesk software.
Are my confidential CAD drawings or blueprints uploaded to a server?
No. All file parsing, layer extraction, and WebGL rendering take place 100% in your local browser memory. No data is ever transmitted across the internet.
Can I measure distances between elements in the drawing?
Yes. Click the Measure tool (M) and click any two snapped points on the drawing to calculate the exact distance, horizontal offset (ΔX), vertical offset (ΔY), and angle.