Free Online CAD File Viewer

Whether you're reviewing an architectural drawing from your designer, checking a property survey from a land office, or inspecting a 3D model before printing, you shouldn't need expensive software to open a file. This viewer handles the five most common design file formats entirely in your browser.

DXF and DWG files are the standard formats used by AutoCAD and virtually every professional CAD application. Our viewer parses DXF files directly in your browser and converts DWG files using WebAssembly technology — your files never leave your device. You get full layer support, accurate color rendering with the complete AutoCAD Color Index palette, and support for all common entity types.

SVG, PDF, and STL round out the format support. SVG files render at crisp resolution at any zoom level. PDFs display with page navigation for multi-page architectural sets. STL files render as interactive 3D models you can orbit, zoom, and inspect from any angle — useful for reviewing 3D-printed farm equipment, topographic models, or structural components.

Unlike most online file viewers that upload your documents to a server for processing, this tool works entirely in your browser. DXF, SVG, and STL files are parsed using JavaScript running on your device. Even DWG files — a complex binary format — are converted to DXF using a WebAssembly module that runs locally.

This means your architectural plans, engineering drawings, and property surveys are never transmitted over the internet. There's nothing to worry about when viewing confidential client documents, proprietary designs, or sensitive property data. Your files exist only in your browser's memory and are discarded when you close the page.