Free online DWG viewer
View DWG and DXF drawings instantly in your browser with SmartCAD’s free online DWG viewer. Pan, zoom and toggle layers — no AutoCAD, no installation, and your file is never uploaded to a server.
How it works
Open your drawing
Drag a .dwg or .dxf file onto the viewer, or click Open file to browse.
Pan, zoom and explore
Drag to pan, scroll to zoom, fit to screen. Toggle layer visibility as you look around.
Nothing is uploaded
The file is parsed on your own device and never sent to a server, so confidential drawings stay with you.
What it does
- Opens DWG and DXF — the two formats CAD drawings ship in.
- Accurate rendering — lines, arcs, text and blocks drawn true to the file.
- Layer control — show or hide layers to read busy drawings.
- Works everywhere — Chrome, Edge, Firefox and Safari.
Formats
Need to edit or convert, not just view?
Use the DWG Editor to make changes, or pick a converter in the sidebar. For full CAD, SmartCAD starts at $395 — one-time.
Questions
Can I open a DWG file without AutoCAD?
Yes. SmartCAD’s free online DWG viewer opens DWG and DXF files directly in your browser, so you can view a drawing without installing AutoCAD or any CAD software.
Is the DWG viewer free?
Yes. The viewer is completely free to use, with no account, no watermark and no limit on how many files you open.
Are my files uploaded to a server?
No. Your drawing is read and rendered locally in your browser. It is never uploaded, so confidential drawings stay private.
Which DWG and DXF versions are supported?
The viewer reads DWG and DXF files saved by AutoCAD and most other CAD programs, including both older and recent format versions.
Can I edit a drawing in the viewer?
This tool is for viewing only. To make changes, use the SmartCAD DWG Editor, which lets you draw and edit, then save the result as DXF.