Schematic-first
Drag cavity-to-cavity to create wires. Signals, splices, twisted pairs, and shielded cables are first-class. See the schematic guide.
LoomFlow
Schematic-first wire harness design. Define connectors, drag wires between cavities, lay out trunk bundles — the cut list and BOM fall out live.
What is LoomFlow?
Section titled “What is LoomFlow?”LoomFlow is a desktop and browser app for designing wire harnesses. You draw the
schematic (what connects to what), lay out the physical bundle routing with lengths,
and the tool derives the cut list and bill of materials live as you work. Each
project is a single, portable .loomflow file — the whole design plus its device
images in one place, ready to save locally or sync to the cloud.
Live cut list + BOM
Bundle lengths plus breakout tails drive per-wire cut lengths automatically. Parts from the manufacturer library explode into the BOM.
Offline-first, syncs when you want
Design fully offline; your work saves to one portable file. Turn on cloud sync and share links when you need them. See collaboration.
Imports and exports
Import from KiCad schematics or harness.design; export CSV, SVG drawing sheets, and PDF.