This is the next version of the LXCat website. The purpose of this demo is to gather feedback on the interfaces, data format, and general usability of the new website. Please communicate such feedback in the form of issues on the LXCat GitHub page or in the form of an e-mail to info@lxcat.net. Likewise, existing and new contributors that want to display their data on LXCat 3 can reach out to the LXCat team by using the aforementioned links. Do not use data downloaded from this deployment in publications yet. Until the platform is officially released, unique identifiers of datasets and cross sections will be unstable. For now, please obtain your cross section data from the LXCat 2 website.