Free online music tools for serious practice
An accurate metronome, a chromatic tuner, and a tap tempo counter — free, in your browser, with no ads and no signup. Built by the makers of Rhythm Challenge for iOS.
Tools that measure how you really play
The web tools give you the click and the pitch. The apps close the loop — they measure your playing and tell you exactly how tight you are. And for the youngest musicians there is Rhythm Words.
Rhythm Challenge
A metronome that grades your timing — early, late, or dead on, to the millisecond.
Tuner: Guitar, Violin & Bass
A fast, dead-simple chromatic tuner — the screen turns green the moment you're in tune.
Rhythm Words
A rhythm game for kids aged 6–8: say the word, tap its syllables, Pippo hops along. The whole course is free.
Tools
Everything runs locally in your browser using the Web Audio API — nothing you play is uploaded, no account, no ads.
Online Metronome
Rock-solid click from 20 to 260 BPM with time signatures, accents, and tap tempo.
Chromatic Tuner
Tune any instrument with cent-level precision — guitar, violin, bass, ukulele, voice. No trained ear needed.
Guitar Tuner
Mic tuner with Drop D, half-step down, Open G and DADGAD — or tune by ear with reference tones.
Bass Tuner
Standard E A D G, Drop D and 5-string — resolves the low B and E cleanly.
Violin Tuner
Tune G D A E in perfect fifths — set the A to 440, then the rest by ear or mic.
Ukulele Tuner
Reentrant high-G G C E A, plus low-G and baritone — with reference tones.
Tap BPM Counter
Tap along to any song and instantly find its tempo in beats per minute.
Rhythm Trainer
Read a 4/4 bar where one beat changes every measure. Pick your patterns and play along.
Timing Test
Tap along and get an honest read — your consistency in milliseconds, and whether you rush or drag.
Fruit Rhythms Kids
Wa-ter-mel-on is four sixteenths. Listen to the bar of fruit, then clap it back.
Ear Training
Hear an interval or chord and name it — three levels, with an honest ear-score.
Reference & theory
Clear, correct chords, keys, intervals and rhythm charts — the theory behind the tools.
Scale Finder
Pick a root and scale to see it on a piano, hear it, and read the formula — every key.
Guitar Scales
Any scale mapped across the fretboard — notes, degrees or intervals, with alt tunings.
Chords
Any chord on piano and guitar — the notes, a chord diagram, intervals, and the sound.
Circle of Fifths
Interactive wheel — click any key for its sharps or flats, relative minor, and chords.
Note Values
Whole to sixteenth notes and rests, their beats in 4/4, dotted notes and triplets.
Key Signatures
Every key's sharps and flats, the order they appear, and how to name a key from them.
Clefs
Treble, bass, alto and tenor clefs — the notes on each line and space, with mnemonics.
Intervals
Every interval from unison to octave — semitones, quality, and a song to hear each one.
Solfège
Do Re Mi and the chromatic syllables, plus movable vs fixed do for ear training.
Tempo Markings
Largo, andante, allegro, presto — every Italian tempo marking with its BPM range.
Note Frequencies
The frequency in hertz of every note from C0 to B8 at A4 = 440 Hz.
Why MusePulse?
Most practice apps flatter you. We think a practice tool should tell you the truth. That principle shapes everything we build:
- Accurate first. Our metronome uses sample-accurate Web Audio scheduling, not sloppy JavaScript timers. Our tuner detects pitch to within a few cents.
- Free and unobtrusive. No ads on the tools, no account, no cookie walls. Open a page, start practicing.
- Honest measurement. Our iOS apps take it further — they listen to your playing and show you exactly how many milliseconds early or late you are.
Read more about MusePulse.
Think your timing is good?
Rhythm Challenge measures it. Most people are surprised.