GrooveDojo
GrooveDojo is a free drum practice app that runs in your browser. Write your own groove, start from an exercise, or follow a practice plan.
Practice with your electronic drum kit and see whether each hit is early or late as you play, then review the session afterward. No electronic kit? You can still play along with the built-in sounds and metronome.
No account needed. GrooveDojo needs JavaScript to run. More about it: About · Compatibility · Privacy · Terms · Drum practice · Electronic drum timing · Drum groove editor · Practice plans · For drum teachers · Independence Trainer · FAQ · How drum timing works · Improvisation Trainer · How the Improvisation Trainer works