Metronome

🔥 The Ultimate Metronome for Musicians — Right in Your Browser

Stop fumbling with phone apps or bulky desktop software. Metronome brings a professional-grade, fully-featured metronome directly into your Chrome toolbar — one click and you're practising. With an animated pendulum, precise timing, 5 click sounds, and support for 55 languages, this is the last metronome you'll ever need.

Whether you're warming up before a gig, drilling scales at home, or keeping time in a rehearsal room, Metronome delivers rock-solid tempo with zero setup and zero distractions.

✨ KEY FEATURES

🎚️ Precise BPM Control (20–300 BPM)
Set any tempo from 20 to 300 beats per minute using the input field, the smooth slider, or the +/- buttons. Long-press the +/- buttons to rapidly scroll through tempos — no tedious clicking.

🖐️ Tap Tempo
Tap the beat you want and Metronome calculates the BPM for you. It averages up to 8 taps for a highly accurate reading, perfect for matching the tempo of a song you're listening to or finding the natural feel of a piece.

🎵 4 Time Signatures
Choose from the most common time signatures used in Western music:
• 2/4 — marches, polkas, cut time feel
• 3/4 — waltzes, minuets, ballads
• 4/4 — pop, rock, jazz, classical, and everything in between
• 6/8 — compound time for jigs, slow blues, and ballads with a lilt

🥁 4 Subdivision Modes
Go beyond the basic beat with subdivisions that help you internalise rhythmic patterns:
• Quarter notes — the fundamental pulse
• 8th notes — double-time feel for tighter practice
• Triplets — essential for swing, shuffle, and compound grooves
• 16th notes — detailed subdivision for advanced rhythmic precision

🎹 11 Tempo Presets
Jump instantly to standard musical tempos with named presets from the classical tradition:
Grave (40) · Largo (50) · Lento (60) · Adagio (70) · Andante (90) · Moderato (110) · Allegretto (120) · Allegro (140) · Vivace (166) · Presto (184) · Prestissimo (208)

🔊 5 Distinct Click Sounds
Choose the sound that works best for your instrument and environment:
• Click — clean, classic metronome tick
• Wood — warm woodblock tone
• Beep — clear electronic beep
• Digital — sharp, modern pulse
• Hi-hat — realistic hi-hat for drummers and percussionists
Each sound includes a distinct accent variation so the downbeat always cuts through.

🔉 Volume Control
Adjust the metronome volume independently of your system audio. Practise quietly late at night or crank it up to hear the click over your instrument.

🟢 Visual Beat Indicators
Watch the beat light up with colour-coded indicators that pulse in real time. The accented first beat glows distinctly so you always know where you are in the measure — invaluable for visual learners and noisy environments.

🕰️ Animated Pendulum
A smooth, realistic pendulum swings back and forth with natural physics, giving you a visual anchor for the tempo just like a traditional mechanical metronome.

🌙 Dark Mode
The interface automatically adapts to your system's light or dark theme via prefers-color-scheme. Easy on the eyes during late-night practise sessions.

⌨️ Keyboard Shortcuts
• Space — Start and stop the metronome instantly
• T — Tap tempo without reaching for the mouse

🌍 55 Languages & RTL Support
Fully localised in 55 languages including Arabic, Hebrew, and Farsi with proper right-to-left layout support. Practise in your language.

💾 Settings Persistence
Your BPM, time signature, subdivision, sound choice, and volume are automatically saved and restored every time you open the extension. Pick up right where you left off.

🎯 HOW IT WORKS

Step 1: Install & Click
Add Metronome to Chrome and click the metronome icon in your toolbar. The popup opens instantly — no new tabs, no loading screens.

Step 2: Set Your Tempo
Type a BPM directly, use the slider, tap the +/- buttons, select a preset from the dropdown, or use Tap Tempo to match a song. The choice is yours.

Step 3: Choose Your Sound & Time Signature
Pick one of 5 click sounds, set your time signature (2/4, 3/4, 4/4, or 6/8), and optionally enable subdivisions for more detailed rhythmic practise.

Step 4: Press Play
Hit the play button or press Space on your keyboard. The pendulum swings, the beat indicators pulse, and you're in the groove.

Step 5: Practise
Focus on your instrument while Metronome keeps perfect time. Adjust tempo on the fly with the slider or keyboard. Your settings are saved automatically.

🔒 PRIVACY & SECURITY

Metronome is built with your privacy as a priority.

• No data collection — The extension does not collect, transmit, or store any personal data whatsoever.
• No analytics or tracking — There are no analytics scripts, no telemetry, no usage tracking.
• No network requests — The extension makes zero external network requests. All sounds are generated locally using the Web Audio API. All fonts and assets are bundled within the extension.
• No content scripts — Metronome does not interact with, read, or modify any web pages you visit.
• Storage permission explained — The only permission used is "storage," which saves your preferences (BPM, sound selection, volume, etc.) locally within Chrome's extension storage on your device. This data never leaves your computer.

Your metronome, your data, your device. Nothing more.

💡 USE CASES

🎸 Guitar Practise
Set 4/4 at 80 BPM with the wood click, enable 8th note subdivisions, and work through chord changes or fingerpicking patterns with metronomic precision.

🥁 Drum Warm-Ups
Start at 60 BPM with 16th note subdivisions and gradually increase the tempo. Use the hi-hat sound to blend naturally with your kit practise.

🎤 Vocal Training & Singing
Singers use metronomes to maintain steady rhythm during phrasing exercises. Set the time signature to match your piece and let the visual beat indicators guide your breathing and entries.

🎹 Piano & Keyboard Scales
Use tempo presets to systematically work through scales at increasing speeds. Start at Andante, master it, then move to Moderato, Allegretto, and beyond.

📚 Music Students & Theory
Learning time signatures and subdivisions is easier when you can hear and see them. Switch between 3/4 and 6/8 to understand the difference between simple and compound time. Toggle subdivisions to internalise how 8th notes, triplets, and 16th notes divide the beat.

⭐ WHY CHOOSE METRONOME

✅ Instant access — Lives in your browser toolbar. One click to open, one click to play. No app to launch, no page to load.

✅ Genuinely full-featured — This is not a toy. Time signatures, subdivisions, tap tempo, multiple sounds, accent support, and tempo presets rival dedicated metronome apps.

✅ Beautiful and functional — The animated pendulum and glowing beat indicators make tempo visible, not just audible. Dark mode keeps it elegant.

✅ Lightweight and fast — No background processes, no memory bloat. The extension runs only when the popup is open and stops completely when you close it.

✅ No internet required — Works entirely offline. Sounds are synthesised in real time using the Web Audio API. No audio files to download, no servers to connect to.

✅ Privacy-first — Zero tracking, zero data collection, zero network requests. Open source trust without the complexity.

✅ Internationalised — 55 languages with full right-to-left support. Built for musicians everywhere.

✅ Keyboard-friendly — Space to play/stop and T for tap tempo means your hands stay on your instrument.

📋 TECHNICAL DETAILS

• Manifest V3 — Built on Chrome's latest and most secure extension platform
• Web Audio API — All sounds synthesised in real time using oscillators and noise buffers for sample-accurate playback
• Lookahead Scheduler — Uses a precision scheduling pattern to eliminate timing drift, even under heavy system load
• Popup-only architecture — No background service worker, no content scripts, no injected code
• Compact footprint — 280px popup width, minimal memory usage
• Settings stored via chrome.storage.local — Persistent, fast, and entirely on-device
• Compatible with Chrome, Chromium-based browsers (Edge, Brave, Opera, Vivaldi, Arc)
• Dark mode via CSS prefers-color-scheme media query — automatic, no toggle needed
• Full i18n with chrome.i18n API and data-i18n attribute binding across 55 locales

🚀 GET STARTED

Click "Add to Chrome" and start practising with perfect time in seconds. No signup, no configuration, no learning curve — just a clean, professional metronome whenever you need it.

Your rhythm. Your tempo. Always one click away.