Free Classroom Timer — Online Visual Countdown for Teachers
Distraction-free classroom countdown timer with custom stages, drag & drop, and full-screen projector mode. No sign-up, no ads.

Free Visual Classroom Timer — Online Countdown for Teachers
Use this classroom timer to run a clear visual countdown right in your browser. Use this classroom countdown timer or countdown clock in seconds—an ad-free online timer for teachers that works on any device and looks great on projectors and interactive whiteboards.
Why teachers choose this classroom countdown timer
- Full-screen projector mode: a big, high-contrast countdown timer students can see from anywhere.
- Custom stages: set Warm-up, Quiz, Group Work, Clean-up — each with its own duration.
- Drag & drop reordering: adjust your lesson flow in seconds.
- Mobile-friendly: run the timer for classroom on a laptop, tablet, or phone.
- No sign-up, no ads: open and teach. Perfect for K–12 and homeschooling.
Popular presets & use cases
Quick 5-minute timer for warm-ups, 10-minute timer for exit tickets, 15-minute timer for group work, or a 20-minute test timer. Also great as a brain break timer, quiet timer, or Pomodoro-style classroom timer.
Classroom routines that work better with a timer
- Station rotation / centers: keep groups on time during ELA, math, science rotations.
- Turn-and-talk / think-pair-share: visible countdown clock reduces overrun and noise.
- Warm-ups & exit tickets: fast 1-, 3-, 5-minute timers create urgency and focus.
- Brain breaks & quiet time: a simple, ad-free timer for classroom helps reset attention.
- Quizzes, read-alouds, clean-up: predictable timing improves classroom management.
Best durations by grade level (guidance)
- K–2: short bursts — 1–5 minutes for transitions, 5–10 for centers.
- Grades 3–5: 5–10 minutes for tasks, 10–15 for group work.
- Middle/High: 10–20 minutes for projects; try a 25-minute Pomodoro with a short break.
Countdown timer vs. stopwatch vs. visual timer
A countdown timer shows time remaining and drives completion. A stopwatch measures elapsed time. A visual classroom timer adds a high-contrast display in full-screen mode so every student can track progress.
Accessibility & projector tips
- Use Full Screen for distance visibility; keep high contrast for students in the back.
- Prefer tabular numerals (already enabled) for stable digits; avoid busy backgrounds.
- Test the beep level before class and consider silent use during assessments.
How to use this online classroom timer
- Click Add Stage and name your activities.
- Set minutes for each stage and drag to reorder.
- Press Start and switch to Full Screen for a clean, distraction-free display.
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Frequently asked questions
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Yes — the online classroom timer is completely free and ad-free. No sign-up required.
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Yes. Add any number of stages like Warm-up, Quiz, Group Work, and set durations for each — then drag to reorder.
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Yes. Use Full Screen mode for a large, high-contrast countdown suitable for projectors and interactive whiteboards.
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The page loads online; after that, it continues counting down even without a connection.
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Yes. Add a stage and set its duration in minutes — common presets are available. Or use the Quick one-click timers above to start a single-stage countdown instantly.
A countdown timer shows time remaining; a stopwatch shows time elapsed. For classroom management, a visual countdown keeps groups on pace.
Elementary centers work well with 5–10 minutes; older grades may use 10–15 or 20 minutes depending on task complexity.