Caddis CAD REVIEW

Open DWG without AutoCAD

Open a DWG file without a desktop CAD license.

Caddis is a review tool for people who need to inspect a DWG, not author one. Open drawings locally in your browser, check layers and dimensions, and leave feedback while preserving the source file.

Open the free viewerDownload on the App Store
No account required for local viewing. Files stay on your device unless you opt into Cloud.

Can I open a DWG file without AutoCAD?

Yes. A dedicated DWG viewer such as Caddis can open and review a drawing without a full CAD authoring application. Always verify critical dimensions against the authoritative source.

Caddis on iPhone measuring a 7.7-foot stair run in a DWG floor planMeasure a stair run on site

Field-review workflow

From drawing to clear feedback.

  1. 01Open the Caddis web viewer.
  2. 02Choose the DWG file from your device.
  3. 03Inspect the drawing and use measurement or markup tools as needed.

Built for practical review

No desktop CAD license neededLocal viewing without a mandatory uploadLayer controls, measurement, and markupSource-safe review workflow

Your drawings stay under your control

Caddis is local-first: opening a supported file for local review does not require uploading it. If you choose Caddis Cloud, you can continue a project across devices or create a revocable, read-only link.

Frequently asked questions

Do I need an account to use Caddis?

No. You can open and review supported files locally without creating an account. An account is only needed for optional cloud features.

Are my CAD files uploaded?

Not for local viewing. Caddis processes supported files on your device. Cloud storage and share links are opt-in per project.

Can I use Caddis offline?

Local review is designed to work on your device. Cloud sync and share links naturally require an internet connection.

Which CAD formats can Caddis open?

Caddis opens supported geometry from DWG, ASCII DXF, STL, OBJ, PLY, STEP/STP, and IFC files. DWG, STEP/STP, and IFC compatibility is limited by source version and geometry type; unsupported geometry is reported rather than silently replaced.

Explore Caddis tools

DWG viewerDXF viewerSTEP viewerSTL viewerOpen DWG without AutoCADDWG viewer for contractorsCAD markup in the field