Design Your Wiring Harness. Get It Built.

Free browser-based configurator for automotive, industrial, and EV applications. No software to install.

Configurator Preview

Trusted by race teams, EV builders, and equipment manufacturers.

How It Works

Three steps from idea to finished harness.

Design

Lay out your wiring harness in our browser-based configurator. Drag, drop, and connect from a library of 500+ connectors.

Generate BOM

Automatically generate a full bill of materials and cut list. Every wire, terminal, and connector accounted for.

Get It Built

Submit your design for expert review and fulfillment. We handle sourcing, assembly, and shipping.

Purpose-built for people who need it done right.

Automotive & Racing

Purpose-built harnesses for race cars, restorations, and custom builds. Mil-spec quality without the mil-spec lead times.

EV Conversions

High-voltage and low-voltage harnesses for electric vehicle conversions. Battery, motor, and BMS integration made simple.

Industrial & Equipment

Reliable wiring solutions for machinery, control panels, and specialty equipment. Built to your exact specifications.

Everything you need to go from design to delivered.

No downloads, no licenses. Open the configurator and start designing from any device.

Every wire length, terminal, and connector is calculated and documented automatically.

Deutsch, Molex, TE, Amphenol, and more — all ready to drop into your design.

Our team reviews every order for quality and manufacturability before it ships.

Guides, tips, and lessons from the harness bench.

The Complete Guide to Deutsch Connectors

Everything you need to know about Deutsch DT, DTM, and DTP connectors — specs, pinouts, applications, and how to choose the right one.

Wire Gauge Selection for Automotive Harnesses

How to size your wires correctly for current, voltage drop, and heat dissipation without overbuilding.

How to Design a Wiring Harness from Scratch

A step-by-step walkthrough of the harness design process, from requirements gathering to finished documentation.

Open the configurator and design your first harness in minutes — or reach out for a custom quote.