Frequently asked questions

2d3d is a web application that runs in your browser. Parsing, 3D display, 2D projection and export all happen on your device: exact-surface formats such as STEP and IGES are converted to meshes in the browser using WebAssembly; 2D drawings are produced by orthographic projection with hidden-line removal, computed in parallel in background Web Workers; exported files are also generated in the browser and downloaded directly.

Open the Network panel in your browser's developer tools, then import, convert and export a file: no request uploads the file at any point. The page loads the parsing components it needs from this site on demand; those requests only download code and never send file content. The site only counts anonymous page views, uses no cookies and collects no file information.

2d3d is free to use, requires no account and shows no ads. All computation runs on your device and the server only delivers the web page itself, which keeps running costs low.

Any computer or phone that runs a recent version of Chrome, Edge, Firefox or Safari; nothing to install. Importing and exporting STEP requires newer WebAssembly features, and older browsers show a notice. Larger models use more memory, so very large models are best handled on a computer.

Your file only exists in the memory of the current page: it is not uploaded to a server and not written to the browser's local storage. Reloading or closing the page clears the file and the settings. Exported files are downloaded directly to your device.