QElectroTech is a free, open source software designed for creating complex industrial electrical diagrams. It supports a wide range of diagram types, including electrical, plumbing, geothermal, air-conditioning, hydraulics, pneumatics, domotic, and photovoltaic systems, among others. With over 8,000 symbols available in the latest version, it allows users to create detailed technical diagrams across various fields. The software is licensed under the GNU/GPL license and is available for Windows, Mac OS, and Linux platforms. Its features include a flexible symbol library and user-friendly tools for creating professional-grade schematics. The software is supported by contributions from industrial companies and engineers, including Soliton Controles Industriais and C-Born Engineering, which assist in development and translation. Additionally, QElectroTech supports DXF export for easier integration with other software.