Metronome

About this tool

Clicks are synthesized with the Web Audio API and scheduled slightly ahead of when they play (a standard "lookahead" technique), rather than triggered directly by a JavaScript timer — timers can drift or stutter under browser load, while audio-clock-scheduled events stay locked to sample-accurate timing. Beat 1 of each measure gets a higher-pitched accent click so you can hear where the bar starts.

Nothing here is sent to a server — the entire metronome runs as JavaScript in your browser tab, and needs a tab interaction (like pressing Start) before audio can play, per browser autoplay rules.