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Music Theory & Instruments
Tuners, metronomes, virtual instruments, chords, scales and ear training. 56 free tools that run in your browser, no sign-up needed.
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Guitar TunerTune your guitar with your microphone, in standard or alternate tunings.Chromatic TunerTune any instrument or voice: detects every note from C0 to C8.Ukulele TunerTune a ukulele to GCEA, low G, baritone DGBE or D tuning by microphone.Online MetronomeKeep time with BPM control and tap tempo.Violin TunerTune your violin with the microphone: G D A E with a cents meter and reference tones.Bass TunerTune 4, 5 and 6-string bass guitars with your microphone, reference tones and drop D.Online PianoPlay a virtual piano with your mouse, touch or computer keyboard and record a WAV.Drum MachineMake beats with a 16-step drum sequencer, synthesized kits, swing and WAV export.Chord FinderGuitar chord charts and piano chords for every key, with notes, formulas and sound.Scale FinderSee any music scale on piano and guitar fretboard, with notes, formula, chords and playback.Chord TransposerPaste a chord sheet and transpose every chord to a new key, with capo tips and aligned output.BPM FinderFind the tempo of any song: analyze an audio file for its BPM or tap along to the beat.BPM to MS CalculatorNote lengths in milliseconds and Hz for any tempo: straight, dotted and triplet delay times.Note Frequency CalculatorConvert notes to Hz and Hz to the nearest note with cents, MIDI number and adjustable A4.Banjo TunerTune a 5-string banjo with your microphone in Open G, Double C, Open D and more.Interactive Circle of FifthsClickable circle of fifths with key signatures, relative minors, diatonic chords and playback.Ear TrainingInterval, chord and scale recognition drills with levels, scoring, streaks and weak-spot stats.Guitar Chord Diagram MakerDraw guitar chord box diagrams with fingers, barres and muted strings; export PNG or SVG.Guitar Fretboard TrainerLearn every note on the guitar neck: quizzes, scale and arpeggio overlays, alternate tunings, sound.Note Reading TrainerSight-reading drills for treble and bass clef: name notes with buttons, piano or MIDI, timed scores.Online GuitarPlay a virtual guitar: strum chords with your keyboard or mouse, pick notes on a real fretboard.Online SynthesizerPolyphonic browser synth with 2 oscillators, ADSR, filter, LFO, presets, MIDI and WAV recording.Song Key FinderFind the key, scale, Camelot code and BPM of any song from an audio file, privately.Tanpura DroneEndless tanpura or shruti drone in any key with Pa, Ma or Ni tuning, tempo and jawari for riyaz.Virtual Drum KitPlay a drum set with your keyboard or touch pads, then record a beat, play it back and save it.Vocal Range TestSing your lowest and highest notes to find your vocal range and closest voice type.432 Hz ConverterRetune any song from A=440 Hz to 432 Hz (or 444, 528…) with a precise pitch shift; save MP3 or WAV.Capo CalculatorSee the real chords your capo shapes make, or find the best capo fret and shapes for a key.Chord Progression GeneratorGenerate chord progressions by key, mode and mood, hear them on piano or guitar and export MIDI.Guitar Tab MakerWrite guitar tabs by clicking a fretboard or typing text, hear them played back, save TXT or PDF.Music Streaming Royalty CalculatorEstimate streaming royalties by platform after distributor fees and splits, or streams needed.Online DJ MixerTwo-deck DJ mixer for your own audio files: BPM sync, EQ, crossfader, loops, cues and mix recording.Online LaunchpadPlay an 8x8 beat pad with drum, synth and vocal kits, loops, your own samples and WAV recording.Piano Chord ChartEvery piano chord on a keyboard diagram with notes, fingering, inversions and sound.Sheet Music MakerWrite sheet music by clicking notes or typing ABC; add lyrics and chords, play it, save PDF, MIDI or MusicXML.Singing Pitch TrainerSing into your mic and see your pitch on a piano roll against target notes, with cents and a score.Ukulele Chord ChartUkulele chord diagrams with finger numbers, several shapes, strum sound and printable charts.Audio to Sheet MusicTranscribe a melody or simple piano recording into sheet music; save as PDF, MIDI or MusicXML.Backing Track GeneratorMake jam tracks from any chord progression: drums, bass and chords in any key and tempo.Camelot WheelInteractive Camelot wheel: click a key to see harmonic mixes, convert keys to Camelot and Open Key.Chord Chart MakerTurn lyrics with chords into clean printable chord sheets; transpose, add chord diagrams, export PDF.Guitar Amp SimulatorPlay your guitar through amp models, cabinet, delay, reverb and noise gate right in your browser.Music Interval CalculatorName the interval between two notes, or find the note a given interval above or below.Piano Letter Notes PlayerPaste piano letter notes or virtual piano sheets and hear them played with key highlighting.LRC Lyrics MakerMake synced .lrc lyrics: play a song, tap to timestamp each line or word, preview and download.Melody GeneratorGenerate random melodies in any key and scale over a chord progression; play and export MIDI.MIDI to Sheet MusicTurn a MIDI file into readable sheet music and download it as PDF, PNG or MusicXML.Music Theory QuizQuiz yourself on note names, key signatures, intervals, chords and scales with staff and keyboard.Polyrhythm MetronomePractise 3:2, 4:3, 5:4, 7:4 and other polyrhythms with distinct sounds and a circular visualizer.Song Chord DetectorUpload a song to detect its chords over time, follow them during playback and save a chord chart.Song Practice PlayerSlow down songs without changing pitch, transpose, A-B loop and speed up gradually as you learn.Tempo Change CalculatorConvert a BPM change to percent speed, semitone and cents pitch shift and new song length.Transposing Instrument CalculatorConvert notes and keys between concert pitch and B♭, E♭, F and A instruments, both ways.CPR Metronome110 BPM CPR compression metronome with 30:2 cycle counter, breath pauses and voice prompts.Calming Music for DogsEndless slow, soothing music for anxious dogs and cats, with sleep timer and gentle fade-out.Mindfulness BellGentle bell chimes at fixed or random intervals through the day, with quiet hours and prompts.
About Music Theory & Instruments
Tune a guitar, ukulele, violin or bass with your microphone, keep time with a metronome, and practice with chord, scale and ear-training tools. Allow microphone access when a tuner asks for it; the sound is analyzed in your browser.
Most used here: Guitar Tuner, Chromatic Tuner and Ukulele Tuner.