Shown like notation
Free / No account / Ready in your browser
Make difficult rhythms easy to check.
Enter notes and rests from sheet music, then hear the rhythm right away.
Slow it down, loop it, and practice at your own pace.
Enter notes and rests
Play it back
Check the rhythm from your sheet music.
Isolate a difficult phrase and hear it again and again.
Three simple steps
No account required. Start right away.
1
Enter the rhythm from your sheet music
Build it with notes and rests
2
Check it like notation
See your rhythm update in real time
3
Hear it and practice
Slow down, loop, and repeat
Main features
Everything you need to check rhythms from sheet music
Score display
Your input appears as notation
Audio playback
Hear the rhythm with click sounds
Tempo control
Change BPM freely
Loop playback
Useful for repeated practice
Count-in
A count before playback starts
Share links
Save and share your rhythm
Save your rhythm with a link.
Your rhythm is stored in the link, so sharing and bookmarking are simple.
Create
Copy link
Share or save
rhythm-calculator.colour-field.jp/app?r=4n8n8n4r...
No account Easy to send Opens instantly
Updates
June 13, 2026 Added shuffle and swing support
January 7, 2026 Launched the English version of Rhythm Calculator
February 5, 2025 Established the Privacy Policy
January 28, 2025 Moved to colour-field.jp
August 28, 2021 Added triplet support
May 28, 2020 Released the official Japanese version
May 19, 2019 Released the Japanese beta version
Free to use
All features free No account Desktop / mobile
FAQ
Is it really free?
Yes. No account is required, and you can use it directly in your browser.
Can I use it on a phone?
Yes. It works on both desktop and mobile browsers without installation.
Can I save the rhythm I made?
Yes. You can save or share a rhythm with a link.
What note values are supported?
Half, quarter, eighth, and sixteenth notes and rests are supported, along with dotted notes, ties, and triplets.
Can it read sheet music automatically?
No. It does not scan images or PDFs. Enter the notes and rests from the passage you want to check, then play the rhythm back instantly.
Start practicing rhythm today
Free, no account required, and ready in your browser.
Open Rhythm Calculator