For controls engineers and panel builders

Electrical CAD in the browser.

IEC/NFPA control schematics, 2D panel layout and terminal-strip drawings — drawn in the browser, checked by ERC, exported as one linked PDF package. AI edits arrive as reviewable proposals. Projects are zipped JSON with a published schema.

Start drawing — free See pricing

Runs in the browser · Free tier, no card · Pro/Studio: 14-day trial

dol-starter — Wirepilot

wirepilot.io/p/dol-starter

Saved

Proposal· add run indicator -H1Apply

IEC 60617 + NFPA 79 symbols

Electrical rule checks

2D panel layout & strip drawings

BOM · wire · cable · terminal lists

Linked PDF · DXF · AutomationML

28 languages

A·1 — Draw

A full editor in a browser tab.

Open a tab and the project is where you left it — every edit autosaves into the project history. IEC 60617 and NFPA 79 symbols, orthogonal wiring on a millimeter grid, terminal strips with levels and jumpers, cables with per-core color and cross-section, and cross-references that follow a contactor across pages.

It covers the panel, not just the schematic: 2D layout pages place footprints, DIN rails and ducts to scale, with balloon numbers derived from BOM order so the layout and the parts list cannot disagree. When the library falls short, edit a symbol in place — or let the AI draft one and review it like any other change.

Panel layout — mounting plate+A1 · 1:5

Unplaced · -H1

B·2 — Delegate

AI that shows its work.

Describe a change in plain language, generate PLC pages from an I/O list, or paste a datasheet to add a part. Nothing touches your drawing until you approve it.

Every AI action is a reviewable proposal — a diff of concrete schematic operations with its electrical-rule-check impact computed up front. Apply it or reject it; either way the decision lands in the changelog.

Assistantawaiting review

> add a run indicator lamp after the contactor

+add symbol iec:indicator-lamp as -H1 @ (336, 240)
+add contact -K1:23/24 + wire to -H1:X1
~renumber wires on page 1 (2 changed)

ERC impact: 0 new issues

RejectApply changes

C·3 — Deliver

Documentation your customer can accept.

The PDF export is a complete drawing set: cover sheet, clickable table of contents, schematic pages, BOM, cable schedule and graphical terminal-strip drawings — one linked file with a navigable outline. The layout is fixed and tested; there is no template designer to maintain. Sections you don't need switch off per project.

Shop-floor data comes out the way the floor consumes it: wire, cable and terminal lists as CSV, and label-printer files for wire markers, device tags and terminals. For design review, a read-only share link replaces the PDF-by-email round trip — clients pin comments on the drawing itself, no account needed.

conveyor-cp7.pdf12 pages

Cover sheet
Table of contents
Schematic pages8
Bill of materials
Cable schedule
Terminal strip drawings2

1 / 12

wirepilot.io/s/kx3f…2 comments

D·4 — Own

A file you can read without us.

A .wirepilot file is a zip of documented JSON — schemas published under CC BY 4.0, with conformance fixtures. Read it with any tool, script it, diff it in git.

Hand work over in the formats people expect: linked .pdf with a navigable outline, AutoCAD-strict .dxf, and AutomationML exchange with TIA Portal and EPLAN. Imports — PDF, QElectroTech, AutomationML, I/O lists, parts CSV — are free on every tier, and the open-format export is never paywalled. Leaving takes one click. That is the point.

{
  "type": "symbol",
  "id": "e-k1",
  "symbolId": "iec:contactor-coil",
  "deviceId": "dev-k1",        // tag -K1
  "position": { "x": 96, "y": 128 },  // mm
  "rotation": 0,
  "portRenames": { "A1": "A1", "A2": "A2" }
},
{
  "type": "wire",
  "id": "e-w7",
  "points": [{ "x": 96, "y": 96 }, { "x": 96, "y": 124 }],
  "wireNumber": "3"
}

E·5 — Trust

Deterministic where it matters.

Wire numbering, device tagging and label placement are deterministic — the same project produces byte-identical exports, pinned by tests. A layout engine gives every label room, so wire numbers never sit on crossing wires. ERC runs before any proposal is applied.

Freeze a named revision before anything goes out. Diffs are semantic — elements, not file lines — and revision clouds on the drawing are derived from that diff, not sketched by hand. Restore snapshots the current state first, so a rollback can never lose work.

Revision Cfrozendiff vs rev B

+add -H1 + wiring — page 2
~renumber wire 4

exports byte-identical9f2c…41aa = 9f2c…41aa

F·6 — Pricing

What it costs.

Free

Start drawing right away.

+Full editor: schematics, panel layout, revisions, share links
+1 project, 3 pages
+20 AI actions to evaluate the assistant
+Every importer: PDF, QElectroTech, AutomationML, I/O lists, parts CSV
+Watermarked PDF · open .wirepilot export, always

Start free

Pro

Studio

For professionals and heavy daily use.

$79/user/mo

billed yearly — $948/yr

or $99/mo billed monthly

+Everything in Pro
+500 AI actions / month
+Curated parts catalog
+DXF export (AutoCAD interchange)
+AutomationML PLC export (TIA Portal, EPLAN)
+Email support

Start 14-day trial

Enterprise

For larger organizations.

Custom

+Everything in Studio
+SSO/SAML, admin & audit
+Integrations (TIA Portal, ERP/PLM)
+SLA & onboarding

Contact sales

Try it on a real circuit.

Free tier, no credit card, nothing to install. Import an existing project or start from a blank IEC or NFPA frame.

Start drawing — free