Full-Screen Stopwatch

A precise full-screen stopwatch with lap times and four skins — start timing in one click.

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Shortcuts: Space start/pause · R reset · F full screen · L lap. Press Esc to exit full screen.

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How to use the Full-Screen Stopwatch

  1. Pick a skin. Choose how the stopwatch looks, then go full screen if you want it large.
  2. Start and lap. Press Start (or Space) to begin and Lap (or L) to mark split times.
  3. Reset. Press Reset (or R) to clear the time and laps and start again.

Why use our Full-Screen Stopwatch

Hundredth-second precision. Counts up with centiseconds using a drift-free, timestamp-based engine.
Lap times. Record and review laps with a single button or the L key.
Four skins. Minimal Digital, Flip Clock, Neon Glow or a sweeping Progress Ring.
Big and readable. Full-screen mode makes it visible across a track, gym or classroom.

Free to use — premium coming soon

FREE
  • Centisecond precision
  • Unlimited laps
  • Four full-screen skins
  • Keyboard shortcuts
PREMIUM
  • Remove ads
  • Export lap times (CSV)
  • Custom themes
  • Multiple stopwatches

About the Full-Screen Stopwatch

A stopwatch needs to do two things really well: count accurately and stay readable. This full-screen stopwatch does both. The timing engine is built on high-resolution timestamps, so the elapsed time stays correct to the hundredth of a second even if your computer is busy or the tab loses focus.

Use it for sports, science experiments, cooking, speech practice or any task where you need to measure elapsed time and capture splits. Pick the skin you like, record laps as you go, and go full screen when you want the numbers visible from a distance — all free and private in your browser.

Frequently asked questions

How accurate is the stopwatch?

It uses performance timestamps rather than counting ticks, so it stays accurate even if the browser throttles background frames.

Can I record laps?

Yes — hit Lap (or press L) to capture a split, and the laps are listed below the controls.

Does it work offline?

Once the page has loaded it runs entirely in your browser, so it keeps working without a connection.

Is it free?

Yes, completely free and unlimited with no account required.

From our blog

A quick guide to the Full-Screen Clock

By the Super Simple Digital Tools Team · Updated June 2026

Whether it's for work, study or everyday life, the Full-Screen Clock takes the hassle out of online utilities. A large full-screen clock with four skins — 12/24-hour, optional seconds and date. Perfect as a second-screen clock.

Using it takes seconds: set 12 or 24-hour, and turn seconds and the date on or off, then select the clock style you like best, then enter full screen to turn any screen into a large, clear clock.

Big and glanceable — Shows the current time large enough to read from across a room or on a spare monitor.

Ready to try it? Open the Full-Screen Clock and get your answer in seconds.

  • Big and glanceable: Shows the current time large enough to read from across a room or on a spare monitor.
  • Your format: Toggle 12 or 24-hour time, seconds on or off, and an optional date line.
  • Four skins: Minimal Digital, Flip Clock, Neon Glow or a seconds Progress Ring.

Read the full guide →

Tool by the Super Simple Digital Tools Team. Reviewed by our editorial team. Free to use, no signup required.

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