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CAD Editor by Blueprints AI

Free Online CAD Viewer

Open DWG and DXF drawings in any browser, on any device, with nothing to install.

Open a CAD drawing now

The viewer opens in a new tab. Drag in a DWG or DXF file, or choose File, then Open Drawing.

Open the CAD viewer(opens a new tab)
  • Free
  • No install
  • No account
  • Mac, Windows, iPad, phone

4,442 people used CAD Editor in the last 30 days.

CAD Editor is a free online CAD viewer for DWG and DXF files. Open it in your browser, drag in a drawing, and look through its layers and layouts. Measure distances and areas, mark it up, or edit it if you need to. It works on Mac, Windows, Linux, Chromebook, iPad and phones.

How to view a CAD file online

  1. 1

    Open the viewer

    Choose Open the CAD viewer above. It opens in a new tab, with nothing to install.

    Existing and proposed elevations of a house open in CAD Editor in a web browser
  2. 2

    Drag in your drawing

    Drop a DWG or DXF file into the window. CAD Editor reads the file type for you.

    Floor plans of a house in CAD Editor, with the model and layout tabs at the bottom
  3. 3

    Measure and mark up

    Use the Tools tab to measure distances, angles and areas, and to mark up with revision clouds and freehand lines.

    The Tools tab in CAD Editor: freehand, rectangle, revision cloud and circle markups, and distance, angle, area and arc measuring

Viewers

Works on every device

CAD Editor runs in the web browser, so the same viewer works on every computer and most tablets and phones. There is no Windows-only install.

Where the free CAD viewer runs
DeviceBrowsersBest for
Mac, Windows, Linux, ChromebookChrome, Edge, Safari, FirefoxViewing, measuring and editing
iPad and Android tabletsSafari, ChromeViewing and marking up on a larger touch screen
iPhone and Android phonesSafari, ChromeOpening a drawing and checking a detail

What a CAD viewer shows you

  • The whole drawing, with zoom, pan and zoom to a box.
  • Layers, which you can turn on and off.
  • The model and its layouts, on tabs along the bottom.
  • Measurements: distance, angle, area and arc.
  • Markups: revision clouds, rectangles, circles and freehand lines.

Because the viewer is a full 2D editor, you can also change the drawing and save it as a DXF. To turn a DWG into a DXF, see the DWG to DXF converter.

DWG or DXF: which one do you have?

Look at the end of the file name. A .dwg file is in the format AutoCAD saves by default. A .dxf file is the exchange format, common for laser cutting, CNC and sharing between programs. CAD Editor opens both. For the details, read what a DWG file is and what a DXF file is.

Questions

What is a CAD viewer?

A program that opens CAD drawings so you can look at them without the software that made them. CAD Editor is a free CAD viewer for DWG and DXF that runs in your browser.

Can I view CAD files online for free?

Yes. CAD Editor opens DWG and DXF files in any modern browser for free, with no install and no account.

Which file types does the CAD viewer open?

DWG and DXF, the two common 2D CAD file types.

Do I need to sign up?

No. Open the viewer and drag your file in. There is no account.

Can I view CAD files on an iPad?

Yes. Open the viewer in Safari on the iPad. Pinch to zoom and drag to pan, and use the Tools tab to measure and mark up.

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