MLightCAD ViewerCAD viewing and review in the browser

Open DWG / DXF drawings instantly — no install, no backend, with full markup and measurement tools.

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API Reference

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Instant access

Runs entirely in the browser — no plugins, no desktop software. Open a link and start viewing drawings.

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Data stays local

Parsing and rendering happen entirely on the client. Drawings are never uploaded, cached or mirrored to a server — confidentiality is guaranteed by architecture, not by policy.

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DWG / DXF support

High-fidelity drawing display with model space, layouts, layers, blocks and external references.

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Measure & markup

Precise distance, area, angle and arc-length measurement, plus arrows, clouds, text and callouts — everything a design review needs.

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More than a viewer

Select, modify and create geometry with an AutoCAD-like command experience — real drafting work on the web, not just read-only preview.

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Single-file offline export

Export a self-contained .html with an embedded lightweight viewer — pan, zoom, layers and distance measurement, protected by password and expiry. Opens offline in any modern browser.

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Multi-language

Built-in English, Chinese, Arabic, Czech, Turkish, Japanese and Korean interfaces.

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Responsive UI

One interface that adapts to phones, tablets and desktops — review drawings anywhere.

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Plugin architecture

Decoupled engine and UI with rich extension points — integrate it into your own product with ease.