Top 20 free online stopwatch websites for the classroom (2026)

• Best for timing several students or teams side by side
• Free

A browser timer app whose page describes a stopwatch with start and pause, reset and lap controls, timed to the millisecond. You can add unlimited named, colour-coded stopwatches and countdown timers in a grid, and each runs on its own. Every lap shows cumulative time, the split and a comparison to the average, the best and slowest laps are highlighted, and laps export to CSV. Any timer can fill the screen.

The page says free, with no subscription fees or paywall, and 'No ads, ever'.

Watch for The page we read did not mention classroom use, keyboard shortcuts or whether results are saved after you close the tab, and it names only 'the Polytimer Team' as its maker.

Visit Polytimer ↗

• Ours
• Best for class races, relays and beating the class's own record
• Free

Four tools on one free page. The stopwatch counts from the clock, so it cannot drift; each lap plays the next note of a tune, the fastest and slowest are marked, and the time and laps survive a reload and download as CSV. Class Race gives 2 to 8 named lanes a Start all with a 3, 2, 1 count-in, keys 1 to 8 to stop each lane, an undo for a mis-tap, ties called inside 0.15 seconds, and a podium in the real finishing order. Guess the Time hides the digits and scores each guess early or late, and Beat the Record keeps the class's best for a named routine. Big digits, 64-pixel buttons, keys listed, full screen, no ads.

Free, no sign-in and no ads; Peabody is free through the end of 2026 (as of 2026-10-29).

Watch for Eight lanes at most, where Polytimer and Visual Timer run as many as you like; no comparison of laps to the average, no labels on single laps, and results stay in one browser with no sync between devices.

Visit Peabody Teach Stopwatch ↗

• Best for a relay or race with a stopwatch for each runner
• Free

A free site best known for a shrinking-disc countdown, with a stopwatch, a Lap Timer and an analog stopwatch with a sweeping second hand. The Multi Stopwatch page adds unlimited independent stopwatches with names, Start All and Stop All buttons, a One at a time option for relays, number keys 1 to 9 for each runner, CSV export and a full-screen button. The page names coaches and race organizers as its users.

The pages show no price; there is an optional Buy me a coffee donation link.

Watch for The footer says the site keeps its timers 'ad-light', so some ads may appear, and the plain Stopwatch page has no laps (laps live on the separate Lap Timer page).

Visit Visual Timer (Multi Stopwatch) ↗  Facts read on the maker’s page.

• Best for one big stopwatch that remembers its laps
• Free

A stopwatch with laps and splits, where each lap shows its split and running total and the fastest and slowest are highlighted. You can copy laps or export them to CSV, the time and laps are kept in your browser across a reload, F opens a distraction-free full screen, and there are keyboard shortcuts, an interval beep and a keep-screen-awake option. The page says no sign-up, no ads and no paywall.

Free. WebWork's separate time tracker, which you do not need, has a 14-day free trial and starts at $3.99 per user (as of 2026-10-29).

Watch for It comes from a business time-tracking company, so it has no classroom-specific features, and it times one thing at a time.

Visit WebWork Free Online Stopwatch ↗

• Best for a plain projector stopwatch with saved laps
• Free

A free stopwatch that shows hundredths of a second, with eight colour themes and unlimited laps that list split and total times, fastest in green and slowest in red. The lap table exports to a spreadsheet, Space, L, R and F are the keys, and the page says it keeps running offline once loaded and saves the time and laps in your browser when you leave. It states no ads on the timer face and no popups.

The page says free, with no paid tier.

Watch for The page does not name its maker, and 'no ads on the timer face' leaves open whether ads appear elsewhere on the page.

Visit Online Stopwatch (stopwatch-online.com) ↗

• Best for a clean stopwatch you can style and link to
• Free

A count-up stopwatch that the page says runs without sign-up or ads. It has Start, Pause, Resume and Reset and a Lap button that lists the newest lap first with its difference from the previous one. Settings cover the label, colour, font, size and position, with a shareable URL, and the display is designed for large or projected screens. The page says it catches up to the right time after a background tab resumes.

The page says free.

Watch for Laps show differences only; the page did not mention a fastest-lap mark, export or keyboard shortcuts, and it says it is not a certified scientific instrument.

Visit EasyTimer.app Stopwatch ↗

• Best for quick laps with the standard keys
• Free

A stopwatch page with no download, account or sign-up. It shows hundredths of a second tied to the device's clock, so it stays correct when you switch tabs. Lap, or L, records a split and the fastest and slowest laps are highlighted; Space starts and stops, R resets and F goes full screen, which the page suggests for projecting to a room. A countdown, Pomodoro and interval timer share the page.

The page says free.

Watch for The page does not say who makes it or mention ads either way, and it has no export or second stopwatch.

Visit Stopwatch.net ↗

• Best for a teacher-made full-screen stopwatch
• Free plan, paid upgrades

A count-up stopwatch made for a classroom display that the page says starts instantly in full screen with no login or download. It suggests timed tasks, practical and science work, PE drills, warm-ups and circuits, paired speaking, fluency drills and quick competitions, and offers share and copy-link options. The footer credits a secondary modern foreign languages teacher.

The free part: The stopwatch itself is described as completely free with no login; saving a setup and reopening it on another device needs a Plus workspace.

We did not read a Plus price.

Watch for The page did not mention laps, keyboard shortcuts or ads, so check that it records what you need.

Visit FreeClassroomTools Online Stopwatch ↗

• Best for speaking turns or stations with a hotkey each
• Free

A dashboard of several stopwatches on one page. Parallel mode runs them all together and Switch mode pauses the others when you start one; number and letter hotkeys toggle each timer, and groups A, B and C start or pause a whole group at once. Laps are logged with timestamps, results export as CSV or JSON, and a share link carries names, colours, groups and hotkeys.

The page does not state a price.

Watch for The page shows advertisements and loads analytics and advertising services, and it says to avoid confidential labels; its examples are sports, meetings and billing, not classrooms.

Visit Time to Decimal Multiple Stopwatches ↗

• Best for labelled splits and a start countdown
• Free

A well-known stopwatch that records splits and lap times and lets you label and edit them without stopping the clock. Settings add a count-down before the start, recurring or one-off sound alerts, an Add split on pause option and a Hide features view. You can copy the results or download a text file, a Shortcuts menu lists the keys, and the page has a full-screen button.

The help page calls it the free Online Stopwatch.

Watch for An ad slot sits on the page, and the help page says only one stopwatch fits on a page (open more windows, or use its separate Online Timer for several timers).

Visit timeanddate Online Stopwatch ↗  Facts read on the maker’s page.

• Best for timing toward a target
• Free

A count-up stopwatch with hundredths of a second and unlimited laps, each showing its own segment and the running total, with a summary of fastest, slowest and average. An optional target time (20 seconds, 1, 5 or 10 minutes, or your own) sounds a finish tone without stopping the clock. Space, L and R are the keys, and you can copy the table when you finish.

The site describes its tools as free; the page shows no price.

Watch for Laps are lost when the page is refreshed, the page did not describe a full-screen mode for the stopwatch, and it does not name its maker.

Visit OnlineClock.net Stopwatch ↗

• Best for a stopwatch whose tab shows the time
• Free

A stopwatch and a countdown on one page. The stopwatch has Start, Lap, Stop and Reset, shows each lap's time and total split with the fastest in green and the slowest in red, and gives a best, worst and lap-count summary. Space, L and R are shortcuts and the browser tab title shows the running time. The page says there is no download, sign-up or app permission.

The page says free.

Watch for An advertisement banner appears on the page, and the page did not mention export or full screen.

Visit Calculate.co.nz Stopwatch ↗

• Best for sending laps to a spreadsheet
• Free plan, paid upgrades

A stopwatch with a chronograph dial that sweeps once a minute and unlimited laps with lap time and cumulative split, fastest in green and slowest in red. Space, L, R and F work, with a dark full-screen view built to read from a distance. You can copy laps as tab-separated text or download a CSV file, and the browser tab shows the running time.

The free part: The stopwatch is free and supported by ads; a premium plan offers ad-free browsing and higher daily limits.

We did not read a premium price.

Watch for The page calls the tool 'free because of ads' and shows an ad-blocker notice, so expect ads on the projector.

Visit MiniWebtool Online Stopwatch ↗

• Best for timing up to 50 runners on one page
• Free

A page that runs up to 50 independent stopwatches at once. Each has its own start button, the spacebar and number keys record a time, and a Show time differences option lists intermediate times. Names can be edited or deleted, and times can be copied into a spreadsheet or downloaded as CSV or TXT.

The page does not state a price.

Watch for A sponsored banner appears on the page, the page mentions no Start All or full-screen button, and the maker is not identified.

Visit Online-Timers Multiple Stopwatches ↗

• Best for animated race countdowns for younger classes
• Free plan, paid upgrades

The best-known name in the field. It offers a stopwatch and countdown, a Large Stopwatch for full screen, a Split Lap Timer page and many animated race timers where characters run to the finish. The race timers are countdowns with a random winner each time, and free users can put up to 6 characters in a race. Premium removes ads and raises the limit to 100 characters.

The free part: The stopwatch, split lap timer and most race timers open without paying; free race timers take up to 6 characters.

Per its Premium page, $10 for a 30-day trial, $24 a year, or $96 a year for 30 accounts (as of 2026-10-29).

Watch for The free version is ad-supported (Premium is the ad-free option), and the animated races pick a random winner rather than timing real runners.

Visit Online-Stopwatch.com ↗

• Best for a styled stopwatch you embed or bookmark
• Free

A stopwatch with a lap list, a choice of time formats (to the thousandth, hundredth, tenth or whole second), a digital font, text colour and size, and night mode. The page says settings are saved and that it remembers the time and laps when you close it. It also gives embed code and lets you bookmark a link to a stopwatch with a set time and lap list.

The page shows no price or paywall.

Watch for The page did not mention keyboard shortcuts, full screen, lap export or ads.

Visit vClock Stopwatch ↗

• Best for a themed stopwatch you can embed
• Free plan, paid upgrades

A stopwatch, countdown and Pomodoro timer on one site, with millisecond lap splits and statistics, a configurator for colours, borders and chimes, preset themes and a Zen mode. F or the full-screen icon fills the screen, it uses performance.now timestamps so it does not drift, and an embed snippet works in OBS or on any site. The page says zero signup.

The free part: Free use includes the stopwatch, countdown and Pomodoro timers, with ads.

A Pro upgrade removes ads; the page we read shows no price.

Watch for Free use shows ads, and the page names only F as a keyboard shortcut.

Visit CleanStopwatch ↗

• Best for a stopwatch inside a full class screen
• Free plan, paid upgrades

A stopwatch widget on Classroomscreen's whiteboard screen. Play starts it, Lap or Split buttons mark segments without clearing the stopwatch, and a setting changes the time table format. The page suggests lesson segments, transitions and competitive challenges, and says you can try it free with no login required.

The free part: The Basic plan is $0 and includes all 26 widgets, an annotation bar, three saved name lists and a template library.

Pro is $3 a month, billed annually at $36 (pricing page, as of 2026-10-29).

Watch for It is one widget inside a larger screen with log-in prompts, and the page did not mention ads, export or keyboard shortcuts.

Visit Classroomscreen Stopwatch widget ↗

• Best for a quick time check with no setup
• Free

Search for stopwatch and Google shows a Timer and Stopwatch card above the results, with tabs for Timer and Stopwatch, one start button, a sound switch and a full-screen icon. There is nothing to sign into or install, and it is the quickest way to get a clock running.

Free, built into Google Search.

Watch for One stopwatch with no names, lanes or saved results that we could find, and we did not start it to check for a lap button.

Visit Google Timer and Stopwatch ↗

• Best for a very plain big-digit stopwatch
• Free

A large, easy-to-read stopwatch with Start, Stop and Reset, plus full-screen and mute links, aimed at classrooms, games, exercise and study sessions. The page describes it as free and it sits among Toy Theater's other free classroom tools.

The page describes it as free.

Watch for The page does not mention laps, and it shows an advertisement while pointing to Manipulatives.com as an ad-free alternative.

Visit Toy Theater Stopwatch ↗