How do I record an idea?

Hit Record and play. With the metronome off, the take starts on your first note; with it on, you get one bar of count-in. Hit Stop, listen back, and save the takes worth keeping.

Can I take a riff into my DAW?

Yes. Save the riff, then download MIDI to edit the notes in GarageBand, Logic, Ableton or FL Studio, or a WAV to keep the sound.

Can I change a riff after recording it?

Yes. Open it in the editor: move notes, fix their length, delete wrong ones, add missing ones, snap them to the beat or transpose the whole thing. Saving the edit uses credits, like any save.

Can I record one instrument over another?

Yes. Open the riff in the editor, put the cursor where the new part starts and hit Record. The riff plays while you play, and your new notes are added without changing the old ones.

Can I turn what I played into sheet music?

Yes. Save the riff, then export sheet music as a PDF or as MusicXML. Notes are snapped to eighths or sixteenths and split into bars, so a tidy take gives tidy sheet music.

Why is there a tiny delay?

Browsers add a few milliseconds of audio latency. Wired headphones help; Bluetooth adds the most.

No sound on my iPhone?

Tap any key or pad once to wake the audio up, and turn the volume up. JotJam plays even with the silent switch on.

How long can a take be?

Up to 10 minutes. Recording stops on its own after that, and the take is kept in the list.

Playing and recording are free and need no account. Saving a riff to your account uses a few credits, and you get free credits every day you sign in.

Online piano, guitar and drums

Pick an instrument and play. Hit record when something sounds right — the take starts with your first note.

Write notes

Your riffs

Record an idea in four steps

1
Pick an instrument and play a little to warm up.
2
Hit Record. With the metronome off, the take starts on your first note; with it on, you get one bar of count-in.
3
Play, then hit Stop. The take shows up in the list — listen back right there.
4
Save the takes worth keeping. Unsaved takes stay on this device only.

Metronome and tempo

Set the tempo in BPM, or tap the Tap button a few times in rhythm and it picks the tempo up from you. Choose the beats per bar, and set the volume with the slider.

Fix the notes, then get sheet music

Edit in the piano roll: Open a riff in the editor to move, stretch, add or delete notes, snap them to the beat, transpose them or change how hard they're played. You can also write notes there from scratch, or hit Record to play another part on top while the riff plays back — drums first, then piano.
Sheet music: Export a saved riff as PDF sheet music or as MusicXML for MuseScore, Sibelius, Finale or Dorico. Piano comes out on two staves, guitar with tab, drums on a drum staff. It's made on our server and uses a few credits.

Take it further

MIDI: The notes you played, with the tempo. Open it in GarageBand, Logic, Ableton, FL Studio or any DAW and change the sound, fix a note or add parts. Drums come out on the General MIDI drum channel.
WAV: The sound itself, ready to send to a bandmate or drop into a project.

Questions

How do I record an idea?: Hit Record and play. With the metronome off, the take starts on your first note; with it on, you get one bar of count-in. Hit Stop, listen back, and save the takes worth keeping.
Can I take a riff into my DAW?: Yes. Save the riff, then download MIDI to edit the notes in GarageBand, Logic, Ableton or FL Studio, or a WAV to keep the sound.
Can I change a riff after recording it?: Yes. Open it in the editor: move notes, fix their length, delete wrong ones, add missing ones, snap them to the beat or transpose the whole thing. Saving the edit uses credits, like any save.
Can I record one instrument over another?: Yes. Open the riff in the editor, put the cursor where the new part starts and hit Record. The riff plays while you play, and your new notes are added without changing the old ones.
Can I turn what I played into sheet music?: Yes. Save the riff, then export sheet music as a PDF or as MusicXML. Notes are snapped to eighths or sixteenths and split into bars, so a tidy take gives tidy sheet music.
Why is there a tiny delay?: Browsers add a few milliseconds of audio latency. Wired headphones help; Bluetooth adds the most.
No sound on my iPhone?: Tap any key or pad once to wake the audio up, and turn the volume up. JotJam plays even with the silent switch on.
How long can a take be?: Up to 10 minutes. Recording stops on its own after that, and the take is kept in the list.
Is it free?: Playing and recording are free and need no account. Saving a riff to your account uses a few credits, and you get free credits every day you sign in.

Piano sound: Salamander Grand Piano by Alexander Holm. Guitar sound: tonejs-instruments by Nicholaus P. Brosowsky. Both CC BY 3.0.