Google Maps API Key

Get a key at console.cloud.google.com — enable Maps JavaScript API, Places API, and billing. The key is saved in this browser only and never leaves your machine.

Add Fixtures

 

Rename

Edit Cable Settings

Max load:
Voltage Drop Estimate
End-of-run drop:
2 × L × R × I (75 °C copper). Hover a run on the map to see drop at that point.
Fixtures on this run

Cable Gauge —

Import Map Data

Drop or browse a .csv, .kml, or .kmz file (Google My Maps export).
Imports markers, paths, and polygons.

Drop file or click to browse

CSV · KML · KMZ

Add Fixture

Per unit
Per placement
on 15A circuit

📍Marker

Icon
Color
Size
1.0×
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Help

Quick reference for every tool, panel, and key action. For key bindings, open Keyboard Shortcuts.

Take the interactive tour
Spotlights every tool on the live screen — nothing can be clicked or broken while it runs. Each section title below also has its own walk-through.
Projects & Save
SwitchClick the project name in the top bar to open the Project Browser.
Auto‑saveEverything saves to this browser automatically.
ImportHeader → Import: CSV, KML, KMZ (Google My Maps).
Map & Navigation
SearchJump the map to any address or place.
BrightnessDims the imagery so your runs stand out.
3D & controlsZoom, pan/zoom speed (gear), 3D tilt and rotation.
Drawing Tools
SelectClick items to pick; drag to box-select. Press again to switch to Lasso.
PanMove the map without selecting or placing anything.
EditSelect, move & reshape. One selected run also gets the transform box.
RulerQuick distance measure. Per-segment and total length labeled on the map.
CableClick to add run points. Right-click the tool to pick the wire gauge.
Line / AreaReference line. Click the first vertex to close into a filled area.
ShapeClick-drag to size circle, oval, rect, or square. Press Shape again to cycle the type.
FixtureClick the map to drop a library fixture. Drops near a cable auto-snap to the run.
MarkerPlace an icon marker. Right-click the tool to choose the icon.
LabelDrop a free-floating text label anywhere on the map.
Layers Panel
GroupsNew items go into the active (gold) group. Drag rows to re-order or move between groups.
EyeToggles map visibility for that item or group.
T T iconToggles the name label shown on the map.
Ruler iconToggles segment measurement labels on the map.
TargetCenters the map on that item.
Power Calculator
TabOnly cable runs are calculated — convert shapes/lines from their right-click menu.
StatusEach run shows total amps drawn vs. its safe maximum. Over-limit runs flash red.
Run EditGear icon: set gauge, voltage, NEC margin (default 80%), and manual amp override.
Fixture Library
OpenRight-click the Fixture toolbar button to open the library list.
EditClick any fixture to edit name, watts, voltage, custom image, and icon.
# Auto‑numberEach placed fixture is numbered globally per library entry.
Transform & Reshape
OpenPress E with one object selected, or right-click → Edit.
Scale / RotateCorner handles scale; blue arc rotates. Hold Shift to constrain or snap to 15°.
Auto‑scaleFixtures and labels follow the reshaped run automatically.

Tip: almost every map item and sidebar row has a right-click menu — color, rename, reveal, convert, delete. When in doubt, right-click first.

Plotter
Fixtures
Power
Select
Box select
Lasso select
Pan
Edit
Cable #14
Fixture
Marker 📍
Line
Shape
Label
Total cable0 ft
Runs0 Markers0 Fixtures0 Groups0
v1.17.2-beta.16