QElectroTech

QElectroTech is a free, open-source computer-aided design application for creating electrical diagrams and technical schematics. It is primarily designed for electrical documentation but also supports pneumatic, hydraulic, electronic, and industrial process diagrams. The software provides an extensive library of standardized symbols that users can arrange through a drag-and-drop interface. It includes tools for creating custom symbols, editing connections, and organizing diagrams across multiple sheets. Users can generate cross-references, customize title blocks, and automatically create project tables of contents. QElectroTech also supports exporting component information for external documentation. Available for Windows, macOS, and Linux, it helps technicians, engineers, and designers produce professional schematic documentation without built-in circuit simulation.