Castimer is a free browser-based timer for presentations, meetings, classrooms, fitness sessions and live events. Control the timer from your phone while displaying it fullscreen on a TV, projector or monitor.
Hey Product Hunt 👋
I'm the maker behind Castimer.
I built Castimer after running into a surprisingly annoying problem: timers are easy to start, but they're not always easy to use when you need one on a big screen.
During a presentation, class, workshop, or event, you often want the timer on a TV or projector while keeping control of it from somewhere else.
So Castimer separates the controller from the display:
📱 Phone → control the timer
🖥️ TV / projector → display the timer
You can use it for:
• Presentations
• Meetings
• Classrooms
• Workshops
• Fitness sessions
• Conferences and events
It also supports multi-stage event timers, presets, fullscreen displays, and different ways to get the timer onto a large screen.
My goal with this launch isn't just to promote another timer.
I want to learn where people actually use timers and what makes them frustrating.
So I'd love to hear:
**What situation do you use a timer for, and what do you wish your current timer could do?**
Thanks for checking out Castimer! 🙌