Open DWG files online
DWG is AutoCAD’s native drawing format (DWT is its template). The viewer reads it with libredwg compiled to WebAssembly and draws the 2D geometry on an interactive canvas — all in your browser, no AutoCAD needed.
Drop a DWG file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Or turn DWG into an image — snapshot the preview, add arrows or notes, and download a PNG.
What is a DWG file?
DWG is AutoCAD’s native drawing format (DWT is its template). The viewer reads it with libredwg compiled to WebAssembly and draws the 2D geometry on an interactive canvas — all in your browser, no AutoCAD needed. The .DWG extension identifies a AutoCAD Drawing file, which is served with the image/vnd.dwg media type. You can open it here instantly — drop the file into the box above and it renders in your browser. Nothing is uploaded.
Besides this free online viewer, you can open AutoCAD (DWG/DWT) files in desktop apps such as AutoCAD, DWG TrueView, LibreCAD — but here all you need is a web browser.
Quick facts
| Format | AutoCAD (DWG/DWT) — AutoCAD Drawing |
|---|---|
| File extensions | .dwg .dwt |
| MIME type | image/vnd.dwg |
| Developer | Autodesk |
| Category | 3D, CAD & GIS |
| Also opens in | AutoCAD, DWG TrueView, LibreCAD |
How to open a DWG file online
- Click Choose file above, or drag your DWG file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render DWG in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .DWG file?
A .DWG file is a AutoCAD Drawing, identified by the image/vnd.dwg media type. You can open and read it instantly in the viewer above without installing anything.
What programs open DWG files?
On the desktop, DWG files typically open in AutoCAD, DWG TrueView, LibreCAD. Online, this page opens them in any modern browser — nothing to download.
How do I convert DWG to an image?
Use Snapshot to capture the DWG preview, optionally add arrows, text or highlights, then download it as a PNG image.
Is it safe to open my DWG file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a DWG file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.