Music Tools
A metronome (BPM, time signature, tap tempo) and a tuner that reads the pitch of a sound through the microphone (guitar, ukulele and more), a chord dictionary with guitar fingerings and piano keys, chord transposition and focus sounds. Sound is processed only on this device — never recorded or sent.
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.
Note
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- Frequency
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- Offset
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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.
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.
Type or pick a chord name (Am7, F#m, Bb …) to see guitar fingerings (open, simplified, barre) and piano keys (root position and inversions), and tap to hear it. The sound is synthesized on your device; nothing is sent to a server.
C
Finger numbers are a common example and vary with hand size and habit. The shapes are computed by this tool for standard tuning (EADGBE). Slash chords (C/E) show the plain chord shape.
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.
Frequently asked questions
Does the microphone sound go to a server?
No. The sound is analyzed for frequency inside the browser, never recorded and never sent anywhere.
The metronome sometimes drifts.
If the tab goes to the background or the device is in power-saving mode, the browser may delay scheduled sounds. Keep the screen on while using it.
The tuner cannot read the note.
Noisy surroundings or several strings at once are hard to read. Play one string clearly and move closer to the microphone.
How to use this tool
Use it for instrument practice or keeping time. Tabs: metronome (BPM, time signature, tap tempo), a tuner that shows pitch through the microphone (guitar, ukulele and more), a chord dictionary with guitar fingerings and piano keys, chord transposition and focus sounds such as white noise and rain. Sound is processed only on this device and is not recorded or sent.
Frequently asked questions
Which instruments does the tuner support?
It shows pitch through the microphone and supports guitar, ukulele and more.
What is tap tempo?
A feature that works out the BPM from how you tap a button in time.
Is microphone sound recorded?
No. Sound is processed only on this device and is neither recorded nor sent.
Where do the chord shapes in the dictionary come from?
They are not copied from an outside chart; this tool computes them from each chord's notes. Finger numbers are a common example.
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