Countdown Timer

Millisecond precision countdown with audio alert. Set any duration and let it count down for you.

Millisecond Precision Audio Alert Quick Presets 100% Private

Set Countdown Duration

Hours

Minutes

Seconds

Set your countdown time

Space Start/Pause R Reset

How It Works

Set Duration

Enter hours, minutes and seconds, or use a quick preset button.

Start Countdown

Press Start and watch the countdown with millisecond precision.

Get Alerted

An audio chime plays when time is up. Pause anytime or reset to start over.

How it works

Three simple steps — everything happens in your browser.

Set your time

Enter hours, minutes, and seconds for your countdown. Use presets for common durations.

Start countdown

Press start and watch the timer count down with a visual progress ring.

Get alerted

An alarm sounds when time is up. Reset and start again as many times as you need.

Why use ToolKnit Countdown Timer?

100% Browser-Based

No app to install, no account needed. Just open and start timing — works on any device with a browser.

Visual Progress Ring

See your remaining time at a glance with a smooth animated progress ring. Great for presentations.

Quick Presets

One-click presets for common durations: 5, 10, 15, 25, 30, and 60 minutes. Start timing instantly.

Audio Alert

A clear alarm sounds when your countdown reaches zero — never miss your deadline.

Pro Tips

• Use the 25-minute preset for Pomodoro study sessions — proven to boost focus.
• Great for cooking and baking — set multiple timers for different dishes.
• The timer keeps running in the background even if you switch tabs.
• Use during presentations to keep your talk on schedule with the visual progress ring.