Early access is open
Record a song, loop what you just played, hum a tune into any instrument, beatbox into drums, mix on DJ decks. Then send a link and jam with friends. One app for Windows.
Windows 10 and 11, 64-bit. Your price stays yours, with every 1.x update.
Hear JamSesh
Arrange a song on the timeline. Record your voice or guitar, write parts in the piano roll, or play a melody in while the clip loops round.
Press Jam and play. Everything you start is recorded while the music keeps going. Liked the last bars? Loop them, and they come back on the next round.
Two decks, or four in Advanced mode, with sync, hot cues, beat loops, three-band EQ and a filter. JamSesh finds the tempo and key of your whole music library.
Hum, sing or whistle and a violin, a bass or a synth follows you, pulled into the song's key. Beatbox and real drums play the moment you make the sound.
Recognition works best with a clear microphone. On cheap headsets it misses more notes, so voice playing is still experimental.
JamSesh comes with sampled instruments: guitars, basses, a drum kit, violin, cello, flute, harp and more, all free to use in your music (CC0). They work offline from the first start.
Experimental
Host a session from your own computer and send your friends a link. Everyone hears each other, edits the same song and records into it. No account and no server in between.
How does it all work? The guides walk through every view, step by step. What is finished and what is experimental: beta status.
Experimental
Switch on JamSesh's built-in MCP connection and an AI assistant such as Claude can work in your project: write parts, balance the mix, listen to its own result and answer the notes you leave on the timeline. Every change is one undo step, and it only happens when you allow it.
No subscription and no account. Try everything for 14 days. After that, saving and exporting need a purchase code; nothing you made is lost.
Early buyers pay less. The price goes up as more people buy, and what you pay stays yours, with every 1.x update.
JamSesh is growing every week, shaped by the people who play it. Join the Discord to get help, report a bug, share an idea, find tutorials and show what you made.
Something broke? In JamSesh choose Help → Report a problem…: it saves a diagnostics file and opens a mail to support@getjamsesh.com. Updates arrive inside the app and never interrupt a take.
Everything keeps working except saving and exporting. Buy early access and you get a purchase code by mail; press Activate in that mail (or paste the code under Help → Unlock JamSesh) and it is unlocked for good. Nothing you made is lost.
Not yet. JamSesh is for Windows 10 and 11, 64-bit. Mac is on the roadmap.
No. Everything runs on your computer and there is no account. You only need the internet to download, to get updates and to jam with people outside your home network.
Most USB audio interfaces, microphones and MIDI keyboards work through Windows audio (WASAPI). ASIO drivers are not in the beta yet. DJ controllers and other MIDI devices are experimental: many work through the mapping wizard, but we have not tried every model.
JamSesh is from a new publisher, so Windows SmartScreen warns. Click More info, then Run anyway. The installer needs no administrator rights.
One person hosts from their own computer and sends a link. JamSesh asks the router to open the way (UPnP); if it can't, it shows the steps. On a home network it just works. Over the internet it is experimental, because it depends on the host's router.
JamSesh checks for updates and asks before it installs one. It never installs in the middle of a take or a jam: it waits until the music stops.
More answers in the FAQ.
About 470 MB, the instrument library included. Free for 14 days.