Contact
There is no contact form on this site, on purpose: a form would mean another endpoint that receives data. Email reaches the same place and leaves the site out of it.
Messages are read in the order they arrive. There is no ticket system, so a reply may take a few days.
Reporting a conversion problem
The fastest way to get a useful answer is to include these details:
- The page URL, or the source and target format if you used the workspace.
- Your browser and version, or the Windows app version if you used the desktop build.
- What you expected and what happened instead, in one or two sentences.
- The file size, and whether the file came from a specific CAD tool.
- A screenshot of the error, if there is one.
Do not send the CAD file itself. Models are often confidential, and an inbox is a bad place for them. If the problem only reproduces with one file, say so and describe the geometry; if a sample is unavoidable, strip it down to the smallest shape that still fails.
Microsoft Store purchases
Payment, refunds and Store licence problems are handled by Microsoft, not by this site. Use the Store's own support pages for anything involving a purchase, a refund or a licence that does not activate. For a bug in the app itself, the email above is the right address.
What this address can help with
- A file that will not open, or opens with the wrong scale or orientation.
- A conversion that fails, hangs or produces an empty mesh.
- An error in the documentation on a comparison page.
- A licensing question about the open-source components.
It cannot provide CAD modelling help, convert a file for you, or recover a file that was overwritten on your own disk.
Privacy
An email you send is stored in a normal mailbox and is used only to answer you. It is not added to a marketing list and is not shared. If you want your message deleted after the issue is resolved, say so in the message.