Free Online DWG editor
Draw and edit DWG and DXF drawings directly in your browser with SmartCAD’s free online DWG editor. Create lines, polylines, circles and text, modify existing geometry, and save your work as a DXF file — no installation required and nothing is uploaded.
How it works
Open or start fresh
Open an existing .dwg or .dxf file, or begin with a blank drawing.
Draw and edit
Add lines, polylines, circles, arcs and text. Move, copy, rotate, offset, trim and fillet.
Save as DXF
Download a .dxf file that opens in AutoCAD and other CAD software. Nothing leaves your computer.
What it does
- Drawing tools — lines, polylines, circles, arcs and text.
- Modify tools — move, copy, rotate, offset, trim, fillet.
- Layers and properties — organise and style your geometry.
- Saves as .dxf — opens in AutoCAD and virtually any CAD program.
Formats
Just need to view, not edit?
Use the DWG Viewer, or pick a converter in the sidebar. For full CAD, SmartCAD starts at $395 — one-time.
Questions
Can I edit a DWG file online for free?
Yes. SmartCAD’s online DWG editor lets you draw and edit DWG and DXF drawings directly in your browser, then save the result as a DXF file — completely free, with no installation.
Does it save back to DWG or DXF?
The editor saves your work as DXF, an open CAD format that opens in AutoCAD and virtually any other CAD program. Writing directly back to DWG isn’t supported in the browser.
Can I open an existing DWG file and edit it?
Yes. Open any DWG or DXF file, make your changes — lines, polylines, circles, text and more — then download the result as DXF.
Are my files uploaded to a server?
No. The editor runs entirely in your browser. Your drawing is never uploaded or sent to a server.
Is this a full replacement for AutoCAD?
It covers quick edits and markups. For full CAD work, SmartCAD desktop is a complete AutoCAD-style application with a one-time perpetual license from $395.