DEJA.JSThrottleDrive on any phone, tablet, or laptop
The throttle that fits in your pocket. Touch-first, instant, and designed for real operating sessions.
Scan to launch on any phone
Build a consist in four taps.
No CV programming. Works with any DCC loco. Edit, trim, add, or remove on the go.
Settings
Open the consist settings on any throttle. No CV programming, no decoder address math.
Add Fwd / Bck
Pick locos from your roster and drop them into the consist forward or backward — works with any DCC loco.
Trim
Nudge each loco a few steps faster or slower so the whole consist pulls together — no decoders to flash.
Go
Drive the whole lashup as one. Edit, trim, add, or remove units on the go without stopping the train.
Built for operating sessions
Drive a loco
Pick any loco from your roster and drive it with precise speed control, direction, and all its sound and light functions.
Multi-throttle console
Run several trains at once from a single screen. Jump between throttles without losing your place.
Conductor view
The operating-session dashboard. See every active train, swap between them fast, and keep the whole session flowing.
Your loco roster
Browse every locomotive on your layout with color-coded cards, photos, and custom function labels.
Throw turnouts
Flip any switch on the layout from wherever you are standing. No reaching across the benchwork.
Trigger routes
Fire a preset route with one tap and watch a whole series of turnouts line up automatically.
Fire effects
Play sounds, trigger lighting scenes, and run layout animations right from your phone.
Control signals
Clear a signal, stop a train, or run a full ABS sequence without walking back to the dispatcher panel.
Program decoders
Tune CVs, set addresses, and test new locos on the programming track without leaving the app.
Personal settings
Tweak your throttle the way you like it. Preferences stay in sync across every device you sign in from.
Every view designed for real operators
Open a URL. You're driving.
No app store review. No sideloaded APKs. No Java install. Throttle is a web app, so every phone, tablet, and laptop on your network is ready to drive the moment you share the link.
- Runs on iOS, Android, and every modern browser
- High-contrast UI built for layout-room lighting
- Large touch targets you can hit without looking
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.
Start driving in under a minute.
No install. No configuration. Just open the link on your phone.