Download CalculiX

Thank you for using our software portal. Using the link below to download CalculiX from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available.

However, we must warn you that downloading CalculiX from an external source releases FDM Lib from any responsibility. Please carefully check your downloads with antivirus software. FDM Lib takes it upon itself to provide free download links and inform users when the developing company starts providing a version of CalculiX for direct download.