DEJA.JSCloudThe hub for your whole layout
Your roster, turnouts, effects, and devices — live-synced across every phone, tablet, and laptop in the room.
A single source of truth
Layout dashboard
Your whole layout at a glance. See what is powered on, who is running, and what needs attention the moment you log in.
Loco roster
Organize every engine on your railroad with photos, custom colors, function labels, and notes your operators will actually read.
Sound library
Upload horn blasts, bell dings, and background ambience once and make them playable from every throttle in the room.
Effects manager
Design lighting scenes, animations, and sound cues, then drop them on any throttle with a tap.
Preset routes
Save your favorite sequences of turnouts as named routes so operators can line up a whole yard lead in one tap.
Signal wiring
Configure signal heads, aspects, and logic without touching a wire. Tie them to blocks and watch them come alive.
Sensors and automation
Hook up block detectors and build simple if-this-then-that rules to automate your railroad without a line of code.
Turnout manager
Name every switch on the layout, group them, and label them so new operators can find the right one the first time.
Track diagrams
Draw a clickable schematic of your railroad that mirrors reality and makes dispatching a whole lot easier.
Power districts
Map out your track power zones so you can kill power to one yard without bringing the whole railroad down.
DCC-EX console
Talk directly to your command station when you need to. Send commands, inspect responses, and troubleshoot in plain text.
Device management
Pair throttles, command stations, and IO devices to your layout and see exactly what is online right now.
No roster files to import.
Add a loco in Cloud and every throttle in your layout sees it before you can lift your finger. No CSV exports, no file sync, no hunting for the right version.
Visual management for every piece of the layout.
Turnouts, effects, signals, and routes all live in the same clean UI. Color-code what you want. Group what you want. Drive from any device.
Every piece of your layout, one place.
One account. Every app.
DEJA.js isn't a single tool — it's an open platform for driving, managing, and expanding your layout.
Free to try. No trial timer.
Spin up DEJA.js on your layout today — no credit card, no download for the web apps.
Your layout. Everywhere.
Create an account, add a loco, and every throttle in the room syncs instantly.