OpenWiringLists and reports
Bill of materials, purchase list, devices, wires, terminals, cables and PLC lists as pages or Excel.
v2.0.6First public release · open source under GPL-3.0
Electrical CAD that
Electrical CAD that
understands your wiring.
Draw connected devices, not lines. OpenWiring derives cross-references, wire numbers, terminal strips, cables, PLC and network addresses, and turns them into complete control-panel documentation.
Works with the tools you already use
PDFDXF / DWGExcelTIA Portal
CODESYSTwinCATPLCopen XML
EDZXMLCSVQElectroTech
How it works
One model. Every document.
The schematic is a graph of real devices and conductors. Everything else is derived from it and stays in sync.
01 · Draw
Place devices and wires
Symbols snap to the grid, wires break on connection points, tags follow IEC 81346.
-2K1 coil · A1–A2
-2S2 NO 13–14
-X1:3 → -1M1:U1
-2S2 NO 13–14
-X1:3 → -1M1:U1
02 · Derive
OpenWiring does the bookkeeping
Cross-references, contact images, wire numbers, potentials and PLC addresses are computed live.
-2K1 13–14 /2.4 · 23–24 /2.6
wire 2.03 · +24V
-3A1 DI 0.2 → %IX0.2
wire 2.03 · +24V
-3A1 DI 0.2 → %IX0.2
03 · Deliver
Complete documentation
Checked schematics, terminal and cable diagrams, lists, labels and PLC tags, ready for the workshop.
✓ 0 errors · 2 warnings
✓ 42 pages → PDF
✓ tags → TIA Portal
✓ 42 pages → PDF
✓ tags → TIA Portal
Features
Built for people who draw control panels every day.
Schematics with automatic cross-references
A3 pages with frame and title block, an IEC 60617 symbol library and wires that behave like conductors.
- Coil and contacts linked by tag, with contact image
- Interruption points that pair by name, star sources
- Wire numbers by pattern:
{pagina}.{n:2}, per cabinet, reserved ranges - Schematics in two languages at once from a dictionary
Terminal strips, cables and connectors
Terminals are read from the schematic, sorted and documented without retyping anything.
- Multi-level terminals, jumpers, spares and accessories
- Cables with conductors, colours and shields; cable lists
- Automatic terminal strip and cable diagram pages
PLC and industrial networks
Cards, stations and I/O points on the schematic, with addresses in the format of your PLC.
- Siemens TIA
I0.0· IEC 61131%IX0.0· TwinCATAT %I* - Tag tables for TIA Portal, GVL and PLCopen XML for CODESYS and TwinCAT
- Profinet, EtherCAT and Modbus diagrams; IP and Profinet name table
Cabinet layout and wiring
Place the devices of the schematic on the mounting plate and get the numbers the workshop needs.
- DIN rails and cable ducts with fill level
- Automatic placement, drilling plan, estimated wire lengths
- Wiring sequence and marking labels for common printers
An AI assistant that edits the project
Ask in plain words: add a motor starter, renumber a page, explain a check. Use your own Claude, ChatGPT or Gemini key; nothing leaves your computer otherwise.
- Every change can be undone like any other edit
- A plain-text project format designed for AI agents
- Command line for batch exports and checks
And much more
Everything a real project needs.
Project checks
Open contacts, duplicate tags, unconnected pins, missing parts: found before the workshop does.
Manufacturer parts
Import part data from EDZ packages, XML and CSV into a local SQLite library.
Revisions
Archive a revision, compare two versions of a project and mark the changed pages.
Macros and title blocks
Reusable circuits, a component editor, custom title blocks and page templates.
Six languages
Interface and manual in English, Italian, French, German, Spanish and Russian.
Download
Get OpenWiring 2.0.6
Free for any use, including commercial projects. Projects are plain files on your computer.
macOSRecommended
Apple Silicon (M1–M4)
OpenWiring-2.0.6-arm64.dmg
Download →
macOSRecommended
Intel
OpenWiring-2.0.6.dmg
Download →
WindowsRecommended
Windows 10 / 11 · x64
OpenWiring-2.0.6-win.zip
Download →
The apps are not digitally signed yet: on first start, macOS asks for confirmation in System Settings ▸ Privacy & Security, Windows in “More info ▸ Run anyway”. How to install · All releases
Community
Made in the open, with people who use it.
OpenWiring is young. Real projects and honest feedback shape what comes next.
Report a bug
Something wrong? A short form asks for what we need to reproduce it.
Open an issue →Ask and share
Questions, ideas and examples from your own panels in the Discussions.
Join the discussion →Translate
Improve a translation of the interface or the manual, or add a new language.
Suggest a fix →Contribute code
Electron, React and TypeScript with 600+ tests. Pull requests are welcome.
View the source →Your next panel, documented properly.
Open the example project and see the cross-references build themselves.