Music tools
Tools for musicians and producers: note and frequency converter, tuner, metronome, tempo-to-delay calculator, and a drum machine, plus theory helpers - intervals, transpose and capo, scales, chord finder, circle of fifths, and an ear trainer - all in the browser.
Open My Screen Your personal dashboard - add tools from any category onto one page.
Pitch
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Note, frequency and MIDI converter
Convert between note name, frequency, and MIDI number in your browser - equal temperament with an adjustable A4, plus a full reference table from C0 to B8. Nothing leaves your machine.
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Tone generator
Play a steady reference tone in your browser - choose a frequency or note, a waveform, and the volume, sustained or pulsed, to tune by ear or test your speakers. Nothing leaves your machine.
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Instrument tuner
Tune your instrument by microphone in your browser - it detects the pitch you play, shows the nearest note and how many cents sharp or flat you are, with an adjustable A4. Audio is processed locally and never uploaded.
Tempo
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Tempo to delay calculator
Turn a tempo into delay and reverb times in your browser - enter your BPM and read the milliseconds for every note value, straight, dotted, and triplet, plus the matching frequency. Nothing leaves your machine.
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BPM tap counter
Find a tempo by tapping in your browser - tap along to any beat and read the BPM, averaged over your recent taps and rounded to a common value. Nothing leaves your machine.
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Metronome
A metronome in your browser - set the tempo and time signature, hear an accented downbeat, and keep steady time with sample-accurate Web Audio scheduling. Nothing leaves your machine.
Theory
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Interval calculator
Work out the interval between two notes in your browser - name the distance from one note to another, or build a note a chosen interval above or below a root. Correct interval spelling, instant, all client-side.
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Transpose and capo calculator
Transpose chords and keys by any number of semitones in your browser, and find capo positions - enter a progression, shift it up or down, or see which shapes to play at a given capo fret. Nothing leaves your machine.
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Chord progression generator
Generate common chord progressions in any key in your browser - pick a key and major or minor, and get a popular progression with roman numerals and real chord names to write or practice with. All client-side.
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Ear trainer
Train your ear in your browser - hear a random interval and name it, with your score tracked over the session. Choose which intervals to drill and play them melodically or as a chord. All audio is local.
Reference
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Scale finder
Find the notes of any scale in your browser - pick a root and a scale type (major, minor, modes, pentatonic, blues) and see its notes and degrees laid out on a piano keyboard. Instant and client-side.
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Circle of fifths
An interactive circle of fifths in your browser - click any key to see its key signature, relative minor, and the diatonic chords, with sharps and flats laid out around the wheel. All client-side.
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Chord finder
Look up any chord in your browser - pick a root and chord type and see its notes, intervals, and a piano diagram, then play it back. Major, minor, sevenths, extensions and more. Nothing leaves your machine.