Visual form board
Drag connectors, branches and bundles onto a canvas and watch the harness take shape. Print it 1:1 across multiple sheets — rulers, labels and footer included — then tape it down and build the loom on top.
Built for motorsport & custom builds
The wiring harness,
The wiring harness,
designed before you cut a wire.
Lay out connectors, let AI route the wires, then print a true 1:1 form board and a parts list you can order from — all in your browser. No CAD licence, no desktop install.
- Free to start
- No install
- Your data, your account
Pinouts ready for the hardware you actually run
- Link G5 Voodoo
- MoTeC M150
- Haltech Nexus R5
- Holley Dominator
- AEM Infinity 708
- FuelTech FT600
- MaxxECU Race
- Emtron KV16
- Honda K-series
- Nissan RB26
- Toyota 2JZ
- Bosch LSU 4.9
Features
From blank canvas to a loom on the bench
A full workflow in one place — design, wire, check, cost, print. Nothing scattered across a dozen spreadsheets.
AI Auto-Connect
Point it at your devices and it wires them — matching signal types, power, ground, CAN and sensors, even twisted pairs, shields and splices. Review every change before it lands, with confidence scores and one-click undo.
Pinouts, instantly
Link, MoTeC, Haltech, AEM, Holley, FuelTech and more — drop in a device and its pins are pre-loaded. Running something exotic? Snap a datasheet photo, drop a PDF or paste a URL and AI reads the pinout for you.
OEM swap references
Engine-side pinouts for Honda B/D/H/K/F-series, Nissan SR/RB, Toyota JZ, Mitsubishi 4G63 and Subaru EJ — build adapters or repin an OEM loom without guessing.
Bundles, twist & shielding
Group wires into bundles, set twisted pairs with realistic fill, add shielding with a single-end ground — and get warned about ground loops before they bite.
Sizing & bill of materials
Auto wire-sizing (FLRY-B and friends), fuse matching and voltage-drop checks size every run for you — then an itemised shopping list totals wire by gauge, length and colour, plus terminals, seals and connectors with margin built in.
Motorsport-grade audit
Close to 30 checks drawn from real bench practice — EMI separation, CAN bus topology and 120 Ω terminators, voltage drop per signal, twist rates, temperature zones and ground loops. Caught before you crimp, not after.
Export, print & share
Print loom diagrams and pin tables, share a read-only view, and back up or move projects with the compact .mwa file format.
Also inside: AI chat with full undo · dedicated grounding (star-point) diagram · cross-diagram connector mating · cut sheets, from-to lists & printable wire labels · inline components & wire chains · light & dark · mm²/AWG, °C/°F, cm/in.
The library
No more datasheet archaeology
Drop a device on the board and its connectors and pins are already there — functions, signal types and colours included.
- Aftermarket ECUs, PDMs, dashes and loggers
- Sensors — Bosch, Continental, wideband controllers, triggers
- OEM engine references for adapters and repinning
- Not in the library? AI extracts a pinout from a photo, PDF or URL
- Every pinout carries a source and a confidence rating — never guessed
100+device pinouts
1:1true-scale print
10+engine swaps
0guessed pins
How it works
Three steps to a build-ready harness
01
Add your devices
Pull ECUs, PDMs, dashes and sensors from the library, or define your own connectors. Pins arrive pre-loaded.
02
Wire it — or let AI
Connect pins by hand on the form board, or let AI Auto-Connect do the routing and review its work.
03
Check, cost & print
Run the audit, read off the bill of materials, then print the 1:1 board and build the loom on the bench.
Pricing
Start free. Upgrade when it pays you back.
Free
€0forever
Everything you need to design your first harness.
- Visual form board & 1:1 printing
- Full device & connector library
- Bill of materials & wire-sizing checks
- A starter allowance of AI messages
- Project export / import
Coming soon
Pro
Coming soon
For builders who live in the tool.
- Everything in Free
- Unlimited projects
- A generous monthly AI allowance
- Priority AI auto-connect
- Early access to new features
AI is metered by message count, not tokens — so the cost is predictable and easy to read.
FAQ
Good questions
Do I need to install anything?
No. Kablaro runs entirely in your browser. Sign up, open a project and start designing — nothing to download, on any modern computer.
Where do the pinouts come from?
From manufacturer datasheets, wiring manuals and official documentation. Every device lists its source and a confidence rating, so you always know how trustworthy a pinout is — and we never publish a pin we had to guess.
Can I really print a 1:1 form board?
Yes. The board prints at true scale across as many sheets as it takes, with rulers and a footer. Tape it down and build the loom directly on top of it.
How does the AI pricing work?
The assistant can auto-connect devices, suggest wiring and answer questions about your project. It's metered by the number of messages rather than tokens, so the cost stays predictable.
What about engine swaps?
There are engine-side sensor and ECU pinouts for popular swap platforms — Honda B/D/H/K/F-series, Nissan SR/RB, Toyota JZ, Mitsubishi 4G63, Subaru EJ — so you can build adapters or repin an OEM loom with real pin numbers and wire colours.
Is my data private?
Your projects live in your own account. You can export any project to a file at any time for your own backup.