Metronome & Tuner

Beats are scheduled ahead on the audio clock rather than a screen timer, so they do not drift. If the browser blocks sound, press Start to enable it. Tap tempo averages the last few intervals.

Hold the instrument close and play one string at a time. It shows the nearest note and how many cents sharp or flat you are.

The microphone sound is only analyzed on this device — never recorded, stored or sent. The browser will ask permission when you turn it on. It works best in a quiet place with one note at a time. Very quiet sounds and chords cannot be read.

Mix white, pink and brown noise, rain and ocean waves, all synthesized on this device. No audio files are downloaded and no sound goes to a server. Start quietly, especially with earphones.

• White noise — even like a fan
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• Pink noise — soft and balanced
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• Brown noise — deep, low rumble
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• Rain
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• Ocean waves
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When you mix sounds the total is lowered automatically so it never gets too loud. Keep the volume low for long listening, and stop if you feel pressure in your ears. Settings are saved only in this browser. Sound keeps playing when you switch to another tool tab and stops when you leave the page.

Move chords written above lyrics (C G Am F) or in [Am] notation up or down by semitones. Only chord lines change — lyrics stay untouched and chord columns stay aligned. Your chart is never sent to a server.

Recognized chords start with A–G and may have qualities such as m, 7, maj7, sus4, add9, dim and a slash bass. The capo suggestion ranks by the share of guitar open chords (C D E G A Am Dm Em …) and does not guarantee an easy arrangement.