Caddis CAD REVIEW

DWG file guide

What is a DWG file?

A DWG file is a CAD drawing file commonly used for architectural plans, engineering drawings, layouts, and other technical documentation. It can contain geometry, layers, dimensions, annotations, and related drawing data.

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

How do you open a DWG file?

Use a DWG viewer when you need to inspect a drawing without editing it. Caddis opens supported DWG files locally so you can review layers, measure, and add separate markup in your browser or on iPhone.

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 Caddis on the web or iPhone.
  2. 02Select the DWG file from your device.
  3. 03Review the drawing and verify important information against the authoritative source.

Built for practical review

DWG viewing without a full authoring toolLocal-first reviewMeasurement and markup toolsOptional cloud sharing

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.

Explore Caddis tools

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