is the "ready-to-use" version of the open-source electrical schematic software that runs directly from a USB stick or external drive without installation. Core Features
A quick tip: Go to Settings → Configure QElectroTech and adjust the grid spacing and default symbol scale before starting your first project.
The software goes beyond pure electrical work as well. It can be used to draw diagrams for pneumatics, hydraulics, process industries, electronics, plumbing, geothermal systems, air-conditioning layouts, and even basic 2D drawings of electrical boxes, buttons, and switches.
is a free, open-source desktop application designed for creating professional electrical diagrams and schematics, packaged specifically to run from a USB drive or cloud folder without installation. It is part of the broader QElectroTech project, widely used for industrial, automation, and residential electrical design. Key Features QElectroTech Portable
: Save projects as PDF, SVG, PNG, JPG, or BMP.
As bloatware increases in commercial software, the demand for lightweight, portable tools like QElectroTech Portable will only grow. It represents a shift toward user-owned, accessible engineering tools.
Field technicians frequently encounter situations where a machine's physical layout does not match its outdated paper schematics. With QElectroTech Portable on a rugged USB drive or tablet, a technician can modify the digital schematic on-site, add notes, and export an updated PDF immediately for the client. 2. Cross-Platform Academic Work is the "ready-to-use" version of the open-source electrical
Learn the hotkeys for "Wire" (W) and "Select" (S) to speed up your drafting process significantly.
, designed to run directly from a USB stick or external drive. Quick Setup & Execution : Get the latest archive from the official QElectroTech Downloads : Use a tool like
Ensures the same version and custom symbol library are used across different computers, preventing "missing element" errors during collaborative work. It can be used to draw diagrams for
The portable software is distributed as a compressed archive ( .7z or AppImage). Users extract the directory to a flash drive and execute the launch file ( Lancer QET.bat for Windows or the binary for Linux) to start working instantly. 2. Expansive Symbol Library
My custom elements disappeared after moving the USB drive. Solution: You used absolute paths. Go back to Settings → Paths and use relative paths (starting with ./ ). For example: ./user_elements/my_relays .
QElectroTech's graphical user interface is translated into 19 languages, making it accessible to users around the world. Simply select your preferred language and restart the application to apply the change.
Unlike many other programs in this category, QElectroTech is not a simulation or calculation tool. Instead, its main goal is to provide a free, easy-to-use, and effective solution for creating clear, professional diagrams. The software stores diagrams and elements in XML format, making them easy to manage and edit.
Run the application from a USB 3.0 or USB-C flash drive with fast read/write speeds. Low-grade drives will cause lag when loading large symbol libraries.