Music Tools
Tap tempo, metronome, chord finder, scale builder, tuner, and more — all free, in your browser, with no download or signup.
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BPM Tap Tempo
Tap the button to calculate BPM instantly — great for matching tempo while DJing or producing.
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Online Metronome
Browser metronome from 20–300 BPM with accent on beat 1 — no plugin or download needed.
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Chord Finder
Enter a chord name to see its notes, intervals, and common voicings on a visual keyboard.
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Scale Builder
Build major, minor, pentatonic, blues, and modal scales — see every note and interval.
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Online Tuner (A=440 Hz)
Reference pitch tuner at A4=440 Hz — play any note for guitar, bass, violin, and more.
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Interval Trainer
Learn and identify musical intervals — perfect, major, minor, augmented, and diminished.
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Note Frequency Calculator
Calculate the frequency in Hz for any musical note across all octaves using A4=440 Hz.
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Time Signature Counter
Count beats in 4/4, 3/4, 6/8 and other time signatures with a visual beat indicator.
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Key Transposer
Transpose chord progressions and song keys up or down any number of semitones instantly.
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Rhythm Note Calculator
Calculate note durations — whole, half, quarter, eighth, sixteenth notes for any BPM.
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About these music tools
Whether you're a guitarist finding the right chord, a producer dialling in tempo, or a student learning intervals, these tools cover the essentials of music theory and practice — all running locally in your browser with no data sent to any server.