Professional countdown timer that runs entirely on your laptop and shares a live display to every screen in the room. No internet. No accounts. No cost.
Also available for Windows and Linux · v1.1.0 · Free and open source
Phone
Tablet
Phone
Tablet
This is a real timer. Start it from the admin panel on the left. Watch it update on the display on the right — the same way it works on every screen at your event.
Control from one screen. See it on every other.
When a speaker has 5 minutes left, that information needs to be there. Always. On every screen. Without question.
Your laptop is the server. No internet needed to run, share, or sync. The room's router is the only infrastructure required.
Every display updates in under 10 milliseconds. Direct WebSocket — no cloud relay, no polling, no lag.
Projectors, TVs, phones, tablets, second laptops. If it has a browser, it's a display. No app to install.
Huge glowing digits readable from 20 meters. Color phases shift from green to red as time runs out. Unmissable.
Presets from 1 minute to 3 hours. Custom durations. Add or subtract time mid-session. Start, pause, reset.
One click creates a public HTTPS link for remote viewers. No account. No setup. Off by default — your timer, your choice.
Download and double-click. No accounts. No sign-up. No config.
Enter event title, speaker, duration. Hit Start. That's the whole workflow.
The app shows a LAN URL. Open it on any screen in the room.
Any phone can scan the QR code and see the countdown live. No app needed.
Download and double-click. No accounts. No sign-up. No config.
Enter event title, speaker, duration. Hit Start. That's the whole workflow.
The app shows a LAN URL. Open it on any screen in the room.
Any phone can scan the QR code and see the countdown live. No app needed.
The display adapts as time runs out — calm green when there's plenty of time, urgent red when there isn't.
Because a phone timer can't do any of this.
Trusted at conferences, churches, hackathons, graduations, corporate workshops, and performances worldwide.