Diagramix is a sophisticated AI tool designed specifically with the needs of software developers in mind. Its primary function is to generate Mermaid diagrams, automating an often complex and time-consuming process. Diagramix utilises the capabilities of the GPT family, including versions GPT-3.5 and GPT-4, to improve efficiency and effectiveness. The types of diagrams that can be produced with Diagramix are diverse. They range from sequence, flowchart, state, ER, user journey, class and use case diagrams to bar charts and mindmaps, catering to a spectrum of requirements in the software development process. Aside from diagram generation, Diagramix also offers history support for users who choose to sign in, enabling them to manage, track, and revisit their diagram generation activities more conveniently. Though all diagrams generated by guests are publicly accessible, users have the option to sign up for an account for private searches and diagram management. In addition, the platform offers educational resources on its functionalities, with a demo available showing how to create a Mermaid diagram using Diagramix. This could prove particularly useful for new and less experienced users getting familiar with the platform.