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Online Metronome & Chromatic Guitar Tuner

Keep steady timing intervals with our high-precision audio metronome or tune guitar strings in real-time with your microphone.

High-Precision Metronome

120 BPM

Instrument Tuner

-- Tap microphone to tune
Click reference notes to play stable tuning frequencies in your browser.

The Musician's Guide to Online Metronomes & Guitar Tuning

Whether you are practicing difficult rhythm patterns, tracking studio takes, or tuning up before a live performance, having a reliable online metronome and guitar tuner in your browser is essential. This all-in-one music utility combines a sample-accurate bpm metronome with a real-time chromatic pitch detector to help musicians of all levels master rhythm and intonation.

1. Why Use an Online Metronome for Music Practice?

A metronome is a practice tool that produces regular, metric ticks (measured in Beats Per Minute or BPM) to establish a steady tempo. Practicing with an app metronome or google metronome alternative develops internal rhythm, eliminates rushing or dragging, and builds muscle memory.

2. Standard Guitar Tuning & Frequency Chart

When using a guitar tuner online, it is helpful to know the exact fundamental frequency for each string in standard tuning:

String Number Standard Note Frequency (Hz) Musical Octave String Gauge (Typical Light)
6th (Thickest) E2 82.41 Hz Low E (Bass) .046" / .052"
5th A2 110.00 Hz A string .036" / .042"
4th D3 146.83 Hz D string .026" / .032"
3rd G3 196.00 Hz G string .017" / .024"
2nd B3 246.94 Hz B string .013" / .016"
1st (Thinnest) E4 329.63 Hz High E (Treble) .010" / .012"

3. How Our Online Chromatic Pitch Detector Works

When you activate the google tuner or microphone tuner mode, the tool captures raw audio via the Web Audio API and runs a high-resolution Auto-Correlation Algorithm. Auto-correlation analyzes repetitive waveform periods to isolate the fundamental frequency even amidst background noise or acoustic harmonics.

Tuning Tip: When tuning acoustic or electric guitars, pluck the string firmly with your thumb or pick and allow it to ring. If the needle is to the left (negative cents), tighten the tuning peg to raise pitch; if it is to the right (positive cents), tune down below the target pitch and tune up into the note to ensure gear tension stability.

4. Alternate Instrument Tunings Supported

Frequently Asked Questions

How accurate is this online metronome compared to Google Metronome?

Our metronome uses the Web Audio API hardware clock with lookahead scheduling instead of standard JavaScript timers (setInterval). This eliminates browser stutter and maintains sub-millisecond tempo precision even under heavy CPU loads.

How do I tune my guitar online using the microphone tuner?

Click 'Use Microphone' to allow browser audio access, position your guitar near your device's mic, and pluck an open string. Our auto-correlation algorithm detects the fundamental pitch frequency and shows whether the string is sharp (+) or flat (-).

What are the standard tuning notes for a 6-string guitar?

Standard guitar tuning (from thickest 6th string to thinnest 1st string) is E2 (82.4 Hz), A2 (110.0 Hz), D3 (146.8 Hz), G3 (196.0 Hz), B3 (246.9 Hz), and E4 (329.6 Hz).

What other instruments can I tune with this online tuner?

In addition to standard 6-string acoustic and electric guitars, the tool provides preset reference tones for 4-string Bass Guitar (E1, A1, D2, G2), Ukulele (G4, C4, E4, A4), and Violin / Mandolin (G3, D4, A4, E5).

Is my microphone audio recorded or sent to any server?

No. The pitch detection algorithm processes real-time audio samples entirely in client-side memory via the Web Audio API AnalyserNode. No voice or audio data is ever recorded, stored, or transmitted over the internet.