The easy way to design cable and wire harnesses. Free for students.
Livewire is the teammate you’ve been searching for. It’s browser-based software for electrical schematic, cable, and harness design, built for competition teams: formula, baja, robotics, drone, and rocketry builds. A new member opens the project and starts designing a wiring schematic in minutes. Skip the install, the lost files, and the learning curve.
Built for your team, not just this season's electrical specialist.
Competition teams don’t usually lose to bad engineering. They lose to time. The cable layout, the wire netlist, and the reasons behind both often live on one senior’s laptop, so when they graduate, next season starts from a blank sheet instead of picking up where you left off.
Livewire keeps your cable and harness design in one browser-based project your whole team can open, understand, and build on. Zero learning curve, so a sophomore can pick it up between classes and a new hire on the team can get moving in minutes.
Knowledge stays with the team
Everyone works from the same live project instead of one person’s laptop.
Design reports write themselves
Judges get a clean wiring diagram and a real bill of materials, generated as you build.
Catch issues before inspection
Find a reversed pin or a missed connection in the shop, not at the competition.
Everything your team needs to make it to competition day.
Capable enough to be your team’s system of record. Simple enough that no one needs a training session to open it.
Schematic editor
Route your wiring diagram with connector symbols, pin call-outs, and wire gauge, in one click with our AI tidy feature.
Harness design tool
Build the physical harness straight from your schematic. Change a pinout once and the whole harness updates automatically.
Pre-built component library
Search from thousands of connectors, terminals, and seals in plain language instead of digging through a distributor catalog at 1am.
Design rule checks
Catch a reversed pin or a short before it reaches the car, the drone, or the rover, not during competition.
Auto-generated documentation
Bills of materials, connectivity tables, and harness drawings stay in sync, and export straight into your design report.
Import from Excel
Already tracking a from-to table in a spreadsheet? Pull it straight in and keep building instead of starting over.
Every build, every wire, Livewire has it covered.
Different vehicle, same headache: too many wires, not enough documentation. Livewire fits student projects of any kind.
Combustion & EV race teams
Formula, Baja, Electric vehicles. Move from a one-off prototype harness to something next season can actually maintain.
Robotics & Marine Competitions
Chase down a wiring problem in the pit between matches by using your wiring schematic, not on the field in front of the judges.
Aero & Autonomous
Keep flight-critical wiring documented well enough to pass a technical presentation, not just to fly.
Rocketry & CanSat teams
Payload and avionics harnesses that survive vibration testing, safety inspection, and a launch-day pad review.
Start fast. Stay free. Hand it off clean next season.
Livewire’s free tier gives your team schematic and harness design with no time limit. Rosters carry over season to season, so the next team inherits a working project, not a folder of leftover files.