A few things before you start.

Yes. The software is free for personal and commercial use, with no trial application or email registration. Free use does not mean the source is open. Contact us separately about deployment, integration or project work.

The software is free. AI-assisted editing and layout-image conversion require your own supported model and API key; provider usage costs are yours. Design, save and simulate without configuring AI.

Run the download on your own computer or server and open it in a browser. Projects are stored in that environment. This website provides information, tutorials and downloads, and does not accept project drawings. Review access settings before exposing your installation to the internet.

The recordings currently use v3.1.17, and the online manual has its own version label. The download page shows the actual available release. Follow that package and its notes for interface and feature details.

Stop the program and back up the full data directory, including configuration, database and attachments, before updating as described in the package. A rollback may require restoring the previous data backup.

The contact page builds an email draft or copies text in your browser; you decide whether to send it using email. There are no drawing uploads, registrations or third-party tracking scripts. The server keeps normal access logs and download/contact action counts, and emails you send are used to respond to your enquiry.