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Free board tool

Classroom Timer

A free, full-screen classroom countdown timer with big numbers and an alarm. Project it on the board for games, group work and transitions. No sign-up.

05:00

How to use the classroom timer

Pick a preset or type your own time, press Start and click Full screen to project it. The display flashes and plays a short alarm when time is up. Press the space bar to start or pause.

Ways to use a timer in class

  • Keep games like Pictionary and Charades moving with 60-second turns.
  • Time brain breaks so they end when you planned.
  • Show how long students have left for group work or a quiz.
  • Run transitions: "You have two minutes to clean up."

Pair it with

Games to play with this tool

Team building

Back-to-Back Drawing

Partners sit back to back.

  • ⏱ 10–20 min
  • πŸŽ“ 3–12
Brain breaks

Balloon Keep It Up

The class works together to keep a balloon in the air, counting every tap.

  • ⏱ 3–10 min
  • πŸŽ“ K–8
Review games

Categories

Pick a letter and a list of categories.

  • ⏱ 10–20 min
  • πŸŽ“ 3–12
  • ✏️ No prep
Review games

Charades

Students act out a word or phrase without speaking while their team guesses.

  • ⏱ 10–30 min
  • πŸŽ“ K–12
Quiet games

Classroom Boggle

Students find as many words as possible in a grid of letters.

  • ⏱ 5–15 min
  • πŸŽ“ 3–12
Review games

Classroom Escape Room

Teams solve a chain of puzzles built from your unit content to unlock the final "lock" before time runs out.

  • ⏱ 30–50 min
  • πŸŽ“ 3–12

Questions teachers ask

Frequently asked questions

Is this classroom timer free?

Yes. It runs in your browser with no account, no ads and nothing to install.

Will the timer keep running if I switch tabs?

Yes. It counts against the real clock, so it stays accurate even if the tab is in the background.

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More free classroom tools

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