A clean, accurate metronome for practicing musicians. Tap tempo, time signatures, subdivisions, accents. Try it right here in your browser — no download, no signup, no nonsense.
Most metronome apps are bloated with paywalls, presets you'll never use, and visual chrome that gets in the way. ionmetro does one thing well: keeps you on the beat, without distraction.
Built on the Web Audio API for sample-accurate timing. No drift, no lag, no swing where you didn't ask for it. Every click lands exactly when it should.
Don't know the BPM? Tap any rhythm and ionmetro figures it out. Tap two times to lock in. Tap four for higher precision. Works from 30 to 280 BPM.
2/4, 3/4, 4/4, 6/8 with visual beat indicator. Toggle between quarter notes, eighth notes, and triplets without losing your place in the bar.
Free on the web, free on iOS. No paywalls, no ads, no “upgrade to remove” nonsense. A metronome shouldn't cost you money every month.
Once the page loads, the metronome runs entirely on your device. No servers, no tracking, no analytics. Tested on bad WiFi in practice rooms worldwide.
The first beat of each bar is accented automatically — pitched slightly higher with a brighter tone. Your ear knows where bar one is even when your hands don't.
A native iOS app is coming — built with the same principles as iontuner. No ads, no subscriptions, no compromises. Designed for iPhone and iPad, with Apple Watch in the works.
Same principles. Same dark navy. Same lack of ads. ionmetro keeps you on the beat — iontuner keeps you in tune.
Visit iontuner.com