CAD Drawing Reader & DXF Viewer

Free browser-based CAD utility
CAD Drawing Reader & ASCII DXF Viewer

Open and inspect common DXF drawing entities, control layers, read coordinates, measure distances and bearings, then export an entity schedule or professional review report—without uploading the file to a server.

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Upload or drop an ASCII DXF fileSupported entities include LINE, LWPOLYLINE, CIRCLE, ARC, POINT, TEXT, MTEXT and INSERT markers.Choose a file from your device or drag and drop it into this area.
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INSPECT
Wheel: zoomDrag: panClick: inspectMeasure: two drawing pointsEsc: cancel measureCoordinates use the drawing’s native units.
How to use the CAD reader

Review a DXF drawing in four steps

The viewer is intended for fast engineering checks and drawing familiarisation when full desktop CAD software is not available.

Open the drawing

Select or drag an ASCII DXF file. The file stays on the device.

Control the view

Zoom, pan, fit the drawing and switch individual layers on or off.

Inspect and measure

Select entities to review layer and geometry data, or measure between two points.

Export records

Download the entity schedule as CSV or create a PDF-ready review report.

Practical drawing intelligence

Built for construction and surveying workflows

Layer review

Isolate setting-out, drainage, structures, annotations or survey information without modifying the source file.

Coordinate checks

Read the drawing cursor position and inspect entity start, end, centre or insertion coordinates.

Geometry schedule

Summarise entity types and layers for a quick understanding of drawing content.

Site measurements

Check horizontal distance, coordinate differences and whole-circle bearing between selected points.

Local processing

The DXF text is parsed in the browser and is not intentionally transmitted by this tool.

Clear reporting

Create a review image, layer summary, file details and recorded measurements for discussion or QA.

Important limitationsThis is a lightweight DXF review utility, not a replacement for AutoCAD, BricsCAD or competent drawing verification. It does not support native DWG files, every DXF entity, external references, complex blocks, 3D solids, coordinate transformations or contractual design approval. Convert DWG to an ASCII DXF using trusted CAD software and always check critical dimensions, units, datum, revision and drawing status against the approved project information.
Frequently asked questions

CAD and DXF reading questions

Can the tool open a DWG file?

No. Native DWG is a proprietary binary format and is not parsed by this browser tool. Export or convert the drawing to ASCII DXF using trusted CAD software, then open the DXF version.

Is my drawing uploaded to the website?

The application reads the selected text file locally in the browser. It does not intentionally upload the drawing to a Site Survey server. Normal website hosting, security and analytics arrangements still apply to the page itself.

Which DXF entities are supported?

The viewer supports common 2D LINE, LWPOLYLINE, CIRCLE, ARC, POINT, TEXT, MTEXT and simplified INSERT markers. Unsupported or complex entities may be omitted from the display.

How are drawing units handled?

Coordinates and measurements are shown in the native values stored in the DXF. Confirm whether those values represent millimetres, metres, feet or another unit from the approved drawing information.

Can I use measurements for setting out?

Do not rely on a browser measurement alone for critical setting out. Verify the approved revision, coordinates, datum, units, tolerances and control using suitable professional CAD and surveying workflows.

Why are some objects missing?

The file may contain blocks, splines, hatches, 3D objects, external references, proxy objects or binary content outside this lightweight viewer’s supported entity set.