About

VoiceStopwatch is an independent collection of free browser timing tools: a voice activated stopwatch, voice and talking timers, a Pomodoro timer, countdown and interval timers, classroom, exam and presentation timers, an interactive teaching clock, an online alarm clock, digital and analog clocks, and a board of multiple named timers. Everything runs in your browser. There is nothing to install, no account to create and no payment to make.

Why voice?

Timers are usually needed when your hands are busy: in the kitchen, mid-workout, on a treadmill, holding a plank, or standing at the front of a classroom. The stopwatch and voice timer let you say “start”, “pause”, “lap”, “time” or “set a timer for five minutes” instead of reaching for a screen. Voice is always optional and off by default; every tool works fully with buttons and keyboard shortcuts.

How voice control works, and what happens to your audio

Voice commands use the Web Speech API built into your browser. When you click Enable voice, your browser asks for microphone permission and converts speech to text. Depending on the browser, that recognition may happen on your device or through the browser provider’s speech service (for example, Google’s in Chrome). VoiceStopwatch itself never receives, stores or transmits your audio or transcripts. The last phrase heard is shown on the page only so you can see what was recognised, and it disappears when you leave.

Spoken announcements on the talking timer and alarm clock use your device’s own text-to-speech voices. They need no microphone at all.

Your data stays on your device

Timer sessions, laps, saved routines, alarms, task lists and appearance preferences are kept in your browser’s local storage so that a refresh or accidental tab close does not lose your place. They are never uploaded and are not synchronised between devices. Exporting laps, history or routines produces a file that downloads straight to you. The site uses Google Analytics and advertising, described in the privacy page; neither has access to what you type or say into a timer.

Accuracy

Every tool measures time from high-resolution timestamps rather than by counting animation frames, so a background tab or a slow device does not make the clock drift. The stopwatch records laps to the hundredth of a second. Browsers can still suspend a locked phone or a sleeping laptop, so for anything critical keep the page visible and test the sound first — the tools say so on the page rather than promising what a browser cannot guarantee.

Accessibility

Controls are labelled for screen readers, every action has a keyboard equivalent, focus is visible, and colour is never the only signal — the presentation timer’s green, amber and red stages also change their text. Fullscreen views keep an obvious exit. Light and dark themes follow your system preference and can be switched on any page. If something does not work with your assistive technology, please tell us.

Who it is for

Teachers projecting a lesson sequence, students pacing an exam, speakers rehearsing a talk, athletes timing rounds, cooks with messy hands, and anyone who finds a spoken “five minutes remaining” easier to track than a silent clock. The tools were built from these use cases and continue to change based on feedback from people who use them.

Get in touch

Found a bug, want a feature, or have a classroom or training routine worth sharing? Write to contact@voicestopwatch.com or use the contact page. Bug reports that mention your browser and device help most.