UTILS

Free online tools to generate, calculate,
convert, format, encode, and play.

Music Utils

Music theory tools. Chord references, scale explorers, BPM calculators, and composition helpers — all in your browser.

Tap to detect tempo, convert BPM to delay times, time signatures, and note durations for music production and performance.

Chord Progression

Build chord sequences by key, scale, or mood with audio playback. Export as text notation for songwriting and music production.

Create drum patterns with a step sequencer. Multiple kits, adjustable BPM and swing, live pads, and preset patterns.

Ear Training Quiz

Practice identifying musical intervals, chords, and scales by ear with adjustable difficulty levels, scoring, and progress tracking.

Transpose chords, notes, or full chord sheets to any key instantly. Supports sharp and flat notation, chord qualities, and Nashville number system.

Live Coding Music

Write simple code patterns to generate music algorithmically in real time. Built-in examples for beats, melodies, and effects, powered by Strudel. Runs...

Free online metronome with adjustable BPM, time signatures, accent patterns, and selectable click sounds. Practice music with precision timing.

MIDI player. Drag in a .mid file to see the notes on a piano roll and play them back in your browser. Adjust tempo and instrument. Nothing is uploaded.

Free online note-to-frequency converter. Convert musical notes like A4 to Hertz and vice versa.

Select a root note and scale type to visualize notes, intervals, degrees, and related scales.

Sheet Music Viewer

free online sheet music viewer. Render ABC notation or MusicXML as standard notation with audio playback. Transpose, zoom, and ...

Play piano in your browser using your keyboard or mouse. Multiple octaves, sustain pedal, and adjustable volume.

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