Free online DWG to WEBM converter

CAD drawings are often shared as video when a recipient needs to view them in a player or on a platform that accepts WEBM but not DWG. Converting the drawing produces a rendered video, not an editable CAD file.

What the DWG format is

DWG is a binary format for 2D and 3D computer-aided design drawings. Autodesk AutoCAD creates it, and it is also used by compatible CAD programs such as BricsCAD and DraftSight. DWG files commonly contain geometry, dimensions, layers, and layout information.

What the WEBM format is

WEBM is a video container commonly used for web playback. It can hold video encoded with VP8 or VP9 and, when needed, audio. WEBM is suitable for sharing a rendered drawing as a video, but it does not preserve CAD layers, dimensions, or editable geometry.

How to convert DWG to WEBM

Online on 101convert.com

1. Upload the DWG file to the converter page and choose WEBM as the output format.
2. Set show each page for to choose how long each page appears.
3. For multiple drawings, add them as a batch. Check the per-file size limit shown on the page, then start the conversion and download the WEBM files.

Offline with desktop software

Free route: ODA File Converter, LibreCAD, and FFmpeg. Convert the DWG to DXF with ODA File Converter, then open the DXF in LibreCAD, available for Windows, macOS, and Linux. Export the view as an image using File → Export → Export as image. Encode that still image as a video with FFmpeg:

ffmpeg -loop 1 -framerate 30 -i drawing.png -t 10 -c:v libvpx-vp9 -pix_fmt yuv420p -an drawing.webm

Replace drawing.png with the exported image filename and change -t 10 to the desired duration in seconds. This produces a 30-frame-per-second WEBM with no audio.

AutoCAD route. In AutoCAD for Windows, use Plot to render the drawing to a PNG file, selecting a PNG plotter configuration if available and setting the plot area, scale, and output resolution. Then encode the image with the FFmpeg command above. For a moving presentation, create or render the animation as frames first and encode the frame sequence instead of one still image.

Quality and limitations

A static DWG has no motion to convert, so a single-image workflow creates a video that holds the drawing on screen for the chosen duration. The drawing is rasterized: increase the export resolution to keep fine lines and small labels legible, and check the plot scale and lineweights. A video cannot retain DWG editability or CAD measurement precision. Avoid uploading confidential drawings unless your organization permits that.