Online Timer & Stopwatch — Free Countdown Timer (2026)

Whether you need to time a soft-boiled egg, run a Pomodoro work block, or measure how long a presentation runs, an online timer and stopwatch gets the job done without installing anything. The NextUtils Timer & Stopwatch runs entirely in your browser — open it, set your duration, and go.

Timer Mode — Counting Down

Timer mode counts down from a duration you set to zero, then fires a “Timer finished!” notification. This is the right choice when you need to stay within a time limit.

Setting a custom duration

Use the Hours, Minutes, and Seconds inputs to dial in any countdown from one second to 99 hours, 59 minutes, and 59 seconds. Enter your values and click Start.

Quick presets

Eight one-click presets cover the most common durations:

Pause, resume, and reset

Click Pause to freeze the countdown — the remaining time is preserved. Click Resume to continue from where you left off, or Reset to return to the default 5-minute duration. If you need to stop completely without resetting, click Stop.

Stopwatch Mode — Measuring Elapsed Time

Stopwatch mode counts up from zero and measures how long something takes. Switch to it by clicking the Stopwatch tab at the top of the tool.

Precision and display format

The stopwatch updates every 10 milliseconds and displays elapsed time as HH:MM:SS.cs (hours, minutes, seconds, centiseconds). Centisecond precision is sufficient for workouts, presentations, and timing any everyday activity.

Recording lap splits

While the stopwatch is running, click Lap to record the current elapsed time as a split. Each lap is numbered and logged in the Laps panel below the display. You can record as many laps as you need. Laps are not available while the stopwatch is paused or stopped.

The lap list is scrollable, so you can track dozens of splits in a single session — useful for interval training, round-by-round competition timing, or any task with repeated checkpoints.

Common Use Cases

Studying with Pomodoro

The Pomodoro technique splits work into 25-minute focused blocks followed by 5-minute breaks. Set the timer to 25 minutes, work until the notification fires, then reset to 5 minutes for the break. Repeat four times, then take a longer 15–30 minute break. The quick presets make cycling between intervals fast.

Cooking and kitchen timing

Set multiple browser tabs open with different timers if you're cooking several things simultaneously — one tab for pasta (8 minutes), another for roasting vegetables (25 minutes). Each tab runs independently.

Exercise and interval training

Use the stopwatch with laps to time each exercise set or rest period. The lap button records the cumulative time at each interval, so you can review your pacing after the session. For straightforward rest timers between sets, the 1-minute or 90-second countdown works well.

Presentations and meetings

Set a countdown for the total allotted time to make sure you finish on schedule. Alternatively, use the stopwatch to measure how long each section of your talk actually takes during rehearsal — then adjust accordingly.

Timer vs Stopwatch: Which Mode to Use

Controls Reference

Background Tabs and Mobile: What to Know

Modern browsers throttle JavaScript timers in background tabs to save battery. In practice this means:

• The display may lag behind by a second or two when you switch back to the tab.
• The “Timer finished!” notification still fires when you return — the completion event is not lost.
• The stopwatch centisecond counter may freeze while the tab is hidden, then jump when you return.

Recommendation: keep the timer tab visible for the most accurate display. On mobile, prevent the screen from locking while the timer is running (enable “stay awake” or similar settings if available). For critical timing tasks, use your device's native clock application.

Copying the Time Result

The Copy Time button captures the current reading and puts it on your clipboard:

• In Timer mode it copies the remaining time as H:MM:SS.
• In Stopwatch mode it copies the elapsed time as HH:MM:SS.cs.

This is useful when logging times into a spreadsheet, noting duration in a report, or sharing a result over chat without having to manually type the time.