DWG Viewer

A fast, free online tool to view DWG/DXF CAD files, inspect layers, measure distances, and export images for collaboration.

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100%

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4.9 / 5.0

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About This Tool

The DWG Viewer accepts DWG and DXF files via upload or URL and renders 2D geometry and basic 3D projections while preserving layer visibility and entity attributes. It focuses on viewing, measurement, and data export rather than editing, making it suitable for review sessions, site planning, and vendor handoffs.
Conceptually, the tool parses CAD data into vector primitives, applies unit scaling, and renders coordinates on a device screen. It supports metric and imperial units and exposes measurement results without requiring desktop CAD software. Users can toggle layer visibility to isolate relevant information and reduce visual noise.
Beneficiaries include engineers, project managers, contractors, and BIM coordinators who need quick access to design data from comments, RFIs, or requests for information. Its unique value lies in immediate rendering, accurate measurements, and straightforward exports, enabling faster decisions and communication across dispersed teams.
Core features include file ingest, layer control, on-screen rendering, pan/zoom, distance/area/angle measurement, and exports in PNG, SVG, or CSV. Typical use cases are design reviews, site planning, quantity takeoffs, and handoffs to fabrication or construction teams.

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How to Use

Upload DWG/DXF file or provide a URL to fetch the CAD data.
Confirm units (mm, cm, m, in) and adjust visible layers as needed.
Use measurement tools to capture distances, areas, or angles between entities.
Review the rendered view and export a snapshot or data file (PNG, SVG, CSV) for sharing.
Save session or generate a shareable link if available.

Frequently Asked Questions

Find Quick Answers

Which file formats are supported?

The tool supports DWG and DXF CAD files for viewing. Some features may depend on file version compatibility and may not expose all entities from newer formats. The goal is faithful visualization and measurement rather than full editing.

Are there file size or performance limits?

Yes. To ensure responsive rendering, uploads are limited to 50 MB per file. Very large or complex drawings may render slowly or require tiling. The tool provides progress indicators and may offer partial rendering where possible.

Can I export measurements or the current view?

Measurements such as distance, area, and angle can be saved as CSV, while the current viewport can be exported as PNG or SVG. Export options are intended for sharing findings and facilitating collaboration.

Is my data stored after the session?

Files are processed in memory and not retained permanently unless you explicitly save data or sign in. Sessions are typically ephemeral and deleted when the browser is closed, reducing data footprint and improving privacy.

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