The Online Metronome on Windows is a browser-based click track that runs locally in Microsoft Edge, Chrome, Firefox, or any modern browser on Windows 10 and Windows 11, with no download, installation, or sign-up. Open the page, type a whole tempo between 30 and 240 beats per minute, choose between one and twelve beats per measure, and select Start to hear a steady repeating click. Beat one plays at the higher 1320 Hz pitch and the remaining beats play at 880 Hz, so the boundary of each measure is easy to follow by ear. Every part of the timer, the oscillator node, and the audible click runs inside your current browser tab using the Web Audio API, which is the standardized browser interface for generating audio in real time. Because the click stream lives in the tab, the operating-system audio drivers and your speakers or headphones set the loudness, the tab remains the source of every scheduled click, and your microphone, audio files, and account are not touched at any point.
Why a Browser Metronome Fits Windows
Windows 10 and Windows 11 ship with Microsoft Edge already installed, and most Windows PCs have Chrome or Firefox within a few clicks. That makes a browser metronome the shortest path from "I need a click" to "I have a click" on a Windows machine. Because the tool runs locally in the active tab, nothing on the Windows desktop has to install, request elevation, write to the registry, or fight an antivirus scanner. You do not need to search the Microsoft Store, plug in a USB MIDI adapter, or open a separate piece of hardware.
The browser tab also sits next to whatever you are already working on, so the click pattern can run while you keep a score PDF, a notation site, or a video lesson open in another window. If the metronome is no longer needed, selecting Stop ends the pattern immediately. Closing the tab before stopping still stops the audio, because the same cleanup runs on tab close so leftover clicks cannot keep scheduling.
Open the Metronome and Start the Clicks
These are the steps for running the Online Metronome on Windows from any modern browser. Each step maps directly to a control on the page.
- Launch Edge, Chrome, Firefox, or another modern browser on the Windows PC, then open the Online Metronome page.
- Locate the tempo field and enter a whole number from 30 through 240 beats per minute. The field does not accept decimals, fractions, or units.
- Locate the beats-per-measure field and enter a whole number from 1 through 12. This sets how many clicks make up one measure before the higher first-beat accent repeats.
- Select Start. The first click you hear is the higher 1320 Hz tone, and the rest of the beats in that measure will land at 880 Hz.
- Practice with the clicks at your chosen tempo and beats-per-measure for as long as you need.
- Select Stop when you are done. The scheduled click is cancelled, the audio context closes, and the tool returns to a stopped state.
- Close the browser tab when you are finished with the session. The same cleanup runs on tab close, so no leftover click pattern continues scheduling in the background.
Valid Settings: The BPM and Beats-per-Measure Ranges
The metronome validates both inputs as untrimmed whole decimal numbers and rejects anything outside the supported ranges. Signs, spaces, decimals such as 119.5, exponent notation such as 1.2e2, units such as "bpm", empty values, BPM values below 30 or above 240, and beats-per-measure values below 1 or above 12 all fail rather than being rounded or capped. Editing either value while the metronome is running stops playback before the new value can take effect, which keeps the displayed tempo and the active timer from drifting apart.
The click interval is derived from the standard definition of beats per minute, so the interval in seconds equals 60 divided by BPM. The table below groups the supported tempo range into practical practice bands. The click-feel column is anchored to the three reference values the metronome states directly: 60 BPM gives 1 second, 120 BPM gives 0.5 seconds, and 240 BPM gives 0.25 seconds. Every interval in between follows from the same 60/BPM formula.
| BPM range | Click feel | Common practice use |
|---|---|---|
| 30 to 59 | From two seconds down to just over one second | Very slow rubato, breath work, finger exercises for beginners |
| 60 to 89 | One second to roughly 0.67 seconds | Slow practice, internalizing beat one, sight-reading at a comfortable pace |
| 90 to 119 | From 0.67 seconds down to half a second | Andante, walking pace, scale and arpeggio drills |
| 120 to 149 | Half a second at the lower edge | Moderato, pop and rock tempo, most metronome practice pieces |
| 150 to 179 | Under half a second, approaching a third of a second | Allegro and brisk technique work |
| 180 to 239 | From a third of a second down to about a quarter of a second | Presto, very fast études, endurance drills |
| 240 | One quarter of a second per click | Top of the supported range, four clicks per second |
As a single worked example, at 90 BPM the interval is 60 divided by 90, which equals 0.667 seconds per click, or roughly two-thirds of a second. The same formula gives every other interval you encounter in the table, and you can substitute any BPM inside the supported range into that one expression.
Windows Audio Routing: Volume Mixer, Headphones, and Bluetooth
On Windows, the system volume slider, the per-app volume mixer (right-click the speaker icon in the taskbar and pick Open Volume Mixer), and the physical headphone knob together set the loudness you actually hear. The metronome page does not touch any of those controls, it just schedules a stream of oscillator clicks that the Windows audio drivers render through the selected output. Plugging in headphones after Start usually switches the output on the fly without restarting the pattern.
Bluetooth audio paths on Windows, including Bluetooth speakers, earbuds, and AirPods, add a noticeable latency buffer on top of whatever the browser schedules because the operating system resamples audio for the Bluetooth codec. That extra latency does not make the clicks inaccurate inside the click itself, but it makes them feel late when you play along with the browser tab. Wired headphones, a USB DAC, or the built-in laptop speakers usually give the tightest response. If you practice over Bluetooth on Windows and the rhythm feels sluggish, switching to a wired output typically restores the feel without changing the BPM value.
Begin with the device volume turned low, especially if you are wearing headphones, because a short oscillator with a gain envelope can sound louder than the visual slider suggests. The metronome is not a calibrated sound-pressure source, not a hearing-protection device, and not a substitute for a proper monitoring setup.
What Can Drift the Click Timing in a Browser Tab
The browser schedules the next JavaScript callback from the calculated interval, so ordinary practice lines up cleanly. Real-world browser timing is suitable for practice and tempo reference but is not sample-accurate the way a hardware metronome or a DAW click track is. Several Windows- and browser-side conditions can stretch the gap between scheduled clicks: switching to another tab and letting the metronome tab run in the background, Windows power-saving modes that throttle background timers, a busy main thread while a lesson video buffers or a score PDF is being repaginated, Bluetooth audio latency, browser policies that suspend background tabs, and the operating system itself scheduling around other audio streams.
For a deeper read on how browser timers, oscillator nodes, and audio context lifecycles interact on a Windows PC, including why a JavaScript timer is not the same as a hardware clock, see the explainer on how the Online Metronome works inside your browser. The metronome does not claim DAW synchronization, MIDI clock output, latency calibration, tap-tempo analysis, subdivision patterns, swing, polyrhythm, or recording alignment. If you need any of those, treat the browser click as a lightweight practice reference rather than a studio timing source.
Troubleshooting Common Windows Metronome Issues
When nothing is audible on Windows, the first thing to check is the per-app volume for the browser in the Windows Volume Mixer, because the system slider can be loud while the browser itself is muted. The second thing to check is the output device under Settings > System > Sound on Windows 10 or Windows 11, since the metronome page is silent if the wrong device is selected even when other apps play normally. The third thing to check is the tab itself, because some Windows power plans throttle background tabs and stretch the click interval when the metronome tab is not the active tab.
If the BPM field rejects your input, the usual cause is a non-integer like 119.5 or a stray space. The page accepts only a whole decimal number in the supported range, so 120 works and 120.0, 120 bpm, and 1.2e2 do not. If Start does nothing and an error appears, Web Audio may be blocked in that browser profile; switching to a different browser installed on the same Windows machine is usually enough to confirm whether the issue is the page or the profile.
If clicks are running but feel uneven, the usual suspects in priority order are Bluetooth output, a power-saving plan that throttles background timers, and a busy main thread loading other media in the same tab. Stop the metronome, switch the output to wired headphones or built-in speakers, and keep the metronome tab in the foreground during practice. The first-beat click at 1320 Hz stays easy to pick out either way, so you can re-establish your tempo by ear at any point during the session.
If you're weighing options, Compare Audio Waveform Generation Methods Before You Start covers this in detail.