Everyday tool
Free Online Music Sequencer
Choose notes on the piano roll, set a tempo and press Play. Each column is one sixteenth-note step.
Runs in your browser. No upload.
Build a melody with a 16-step piano roll. Notes are synthesized locally and are not uploaded.
About this tool
Free Online Music Sequencer made simple.
Notes are synthesized locally with Web Audio. Save a pattern on this device or export it as a MIDI file; nothing is uploaded. Keep this tab open during playback because background or sleeping devices can delay audio.
Common questions
About Free Online Music Sequencer.
How do I use Music sequencer?
Choose notes on the piano roll, set a tempo and press Play. Each column is one sixteenth-note step.
Is my data uploaded to a server?
No. This tool runs locally in your browser. Your input is not uploaded.