Wiring diagrams · iPad & iPhone

Sketch it. It straightens itself.

Draw wires roughly with an Apple Pencil or a finger. DrawWire squares them onto a 5 mm grid, snaps symbols to the ends and numbers every cable from → to.

Coming soon to the App Store Get notified at launch

DrawWire on iPad showing a DC distribution drawing: start and house battery banks, a BEP isolator, an Orion DC-DC charger, fuses and a starter motor, with numbered cables 701 to 711 and a title block.

Sample — DC distribution · Main DCSheet 1 of 2Cables 701–711Built-in marine DC symbols

How it works

Gestures in, schematic out

There are no wire tools to pick. You draw the way you would on paper, and each stroke is read as a wire, a symbol, a deletion or an undo.

You do

It does

Draw a rough line

Straightens it into horizontal and vertical runs as you lift. Ends snap to terminals and other wires.

Start or finish on another wire

Joins it, with a junction dot only where wires really connect. Wires that just cross stay unjoined.

Tap the end of a wire

Opens the symbol picker. The symbol connects to that end and points along the wire.

Draw a circle, box or triangle

Suggests matching symbols: motor, alternator, pump, fuse, DC-DC, battery. Draw it over a wire and the symbol is inserted, splitting the wire.

Scribble over something

Deletes it. On a wire, only the scribbled segment goes.

Resize a symbol

Snaps to sizes where every pin lands on the grid, so wires always meet pins square.

Two-finger tap

Undo.

Cables

Every cable knows where it runs

Numbers are assigned as you draw, starting wherever you like. From and to are worked out from the drawing, so the cable list is always right.

Tap a wire, read its run

Cable 703 runs from Fuse 60a to Starter at 95 mm². Set the size in mm² or AWG per drawing, switch at any time, and existing sizes convert to the nearest standard size.

Automatic numbering from a start you choose, like 701
Renumber the whole sheet top to bottom in one go
Per-wire colours, or a default for picture-style diagrams

Cable 703 selected, with an inspector showing From Fuse 60a, To Starter, size 95 mm², standard size chips and wire colours.

A cable schedule you never typed

Search the list by number or component. Type “702” and jump straight to it on the drawing. The same list prints as a schedule page in the PDF.

Cable list: 701 STB (+) to BEP 770, 95 mm²; 702 BEP 770 to Fuse 60a; 703 Fuse 60a to Starter; 704 Fuse 60a to Orion XS 1400 in, 10 mm².

Symbols

Bring your own symbols

Over 100 built-in symbols with a marine and DC focus, including bus bars, battery switches, fuses and Victron models. Import thousands more, or draw your own.

Import a whole library

QElectroTech’s free IEC 60617 and US-standard collections bring around 8,800 symbols. Terminals become pins and folder names become categories.

.elmt.svg.wslib.zipPNG / JPEG

Sketch a symbol or use exact line, box and circle tools
Turn a product photo, like a Victron unit, into a symbol and tap its terminals to make pins
Share your set as a .wslib file

Symbol library with categories: Power, Switching and protection, Loads, Connections and Electronic.

On paper

Ready for the approver

Export a vector PDF from A4 to A1 through the share sheet, to Mail, Files or AirDrop. What you hide stays hidden in the export.

Pages and title blocks

Several pages per project, each with title, drawn by, company, document no., revision with a +1 button, date and sheet n of N.

Off-page links

Link symbols jump to the page they point at, so a switchboard can live on its own sheet.

Layers

Show or hide labels, cable numbers, notes and the grid, on screen and in the PDF.

Pencil first

Once you use an Apple Pencil, the Pencil draws, fingers pan and zoom, and a resting palm can’t interrupt a stroke.

Select and duplicate

Box-select a group, then move, resize, recolour, delete or duplicate it.

Your files

Projects save automatically and show up in the Files app under On My iPad → DrawWire.

Coming soon

Coming soon to the App Store for iPad and iPhone

DrawWire is in final testing. Want to hear the day it's out? Send us a note and we'll tell you.

Get notified at launch

Sketch your system with an Apple Pencil or a finger.
DrawWire straightens it and numbers every cable.
Export a clean PDF for the boat, the van or the installer.