About DWG Viewer Online

We built DWG Viewer Online to give architects, engineers, designers, and students instant access to CAD file viewing — no software installation, no signup, no file uploads to external servers.

Why DWG Viewer Online

Privacy First

Your files are processed entirely on your device using WebAssembly and JavaScript. Nothing is uploaded to any server. Your designs, blueprints, and models stay private — always.

Multi-Format Support

Open 8 supported file formats including DWG, DXF, STL, OBJ, 3DS, glTF, GLB, and FBX. Whether you work with 2D drawings or 3D models, we have you covered.

Instant Access

No account creation, no software installation, no waiting. Open your browser, drop your file, and start viewing. It is that simple.

Measurement Tools

Measure distances directly in your drawings. Export your views to PDF or PNG for sharing with colleagues and clients. Professional-grade tools included at no cost.

Drawing Comparison

Compare two DWG or DXF drawings side by side with synchronized navigation. Spot differences between revisions instantly. Try it now.

Offline Capable

DWG Viewer Online is a Progressive Web App (PWA). Install it on your device and use it even without an internet connection — perfect for job sites and remote locations.

Cross-Platform

Works on any device with a modern web browser — Windows, macOS, Linux, iOS, Android, and Chrome OS. No platform-specific software required.

Embeddable Widget

Add CAD file viewing to your own website with a simple iframe embed. Supports DWG, DXF, STL, OBJ, and 3D formats. No server-side processing required. Learn more.

Our Technology

DWG Viewer Online is built with modern web standards designed for performance and privacy:

Three.js — Industry-leading 3D rendering library for smooth orbit, pan, zoom, and real-time visualization in your browser.
WebAssembly (WASM) — Near-native performance for parsing complex DWG files directly on your device.
Progressive Web App — Install once, use offline. Service Workers cache the application for instant loading.
Client-Side Processing — Every operation happens in your browser. Zero server round-trips for file processing.

Explore More

Sample Files Pricing (it's free) CAD File Formats Guide DWG vs DXF What is a DWG File? Drawing Comparison Embed Widget

Get in Touch

Have questions, feedback, or feature requests? We would love to hear from you.