Open DWG and DXF files without AutoCAD
Someone sent you a .dwg and you just need to look at it. Omia opens AutoCAD DWG and DXF drawings in a native app on Mac or Windows, entirely offline.
Free to view · 5 free saves, conversions & pro-format opens · then $19.90 one-time · no subscription · files never leave your computer
What you can do
- Open .dwg and .dxf drawings (2D) up to 64 MB
- Zoom and pan smoothly
- Turn individual layers on and off
- Export to vector PDF: one page per sheet frame, the whole drawing or the current view; A4–A0; text stays searchable
- Fix text and numbers: click a label, dimension or title-block field on the drawing and type; save as a new DWG (the original is never overwritten)
- Works fully offline — nothing is uploaded anywhere
- Same app also opens STEP, STL, SketchUp, PSD, PDF, Office files and 150+ other formats
What it doesn't do
We'd rather you know before downloading.
- Only text can be edited — no drawing or moving lines and shapes
- Text inside block definitions can't be edited yet (it would change every copy)
- No measuring on DWG drawings yet
- PDF export follows what you see in the preview: no paper-space layouts, plot styles or line weights
- Files larger than 64 MB won't open
How to open DWG files
- Download Omia and install it (Mac or Windows)
- Double-click the .dwg or .dxf, or drag it onto the Omia window
- Zoom, pan, and use the layer list to show or hide layers
Why a local viewer
Most free DWG viewers are websites that ask you to upload the drawing first. That's a problem when the file belongs to a client or is under NDA. Omia renders the drawing on your own machine, so it works on a plane, behind a firewall, and without anyone else seeing the file.
FAQ
How can I open a DWG file without AutoCAD?
Install Omia (Mac or Windows) and double-click the file. You can zoom, pan, toggle layers, export to PDF and fix text.
Can I open DWG files on a Mac?
Yes. Omia runs on macOS 11 or later, on both Apple Silicon and Intel Macs.
Is it free?
Viewing files is free forever, with no sign-up. Saving edits, converting, and opening pro formats (DWG, STEP, SketchUp, CorelDRAW) each come with 5 free uses; after that it's a one-time $19.90 licence, no subscription.
Are my drawings uploaded?
No. Omia processes files locally. Your DWG never leaves your computer.
Can I convert DWG to PDF?
Yes. Click Export PDF: Omia finds the sheet frames in model space and puts one on each page, or exports the whole drawing or the current view. Lines and text stay vector, and the text is searchable.
Can I edit the drawing?
You can fix text and numbers — labels, dimension values, title-block fields — by clicking them on the drawing, then save as a new DWG. Moving or drawing geometry and measuring still need a CAD program.
Omia also opens: 5 ways to open DWG on Mac · DWG to PDF · DXF · STEP · SketchUp · 150+ formats in one app