A multiplayer sound design tool. Fully browser-based with true peer-to-peer networking, SoundFont export, and live cursors/chat so you can shape patches with others in real time. Comes with a real synth engine: 5-shape oscillator, resonant filter, full ADSR amp envelope, and an LFO routable to filter or amp for evolving, moving sounds.
Hey Product Hunt! This was a small weekend project I worked on to use with my friends and thought about sharing with the community.
Whether it's two people tweaking a patch on a call or a whole room piling onto one synth during a livestream, Jamboree is built for sound design as a group activity: watch each other's changes land instantly, talk through the patch as you build it, and walk away with something nobody could've made alone.
Some highlights:
- Live multiplayer editing: see collaborators' cursors and changes in real time (with a cursor chat)
- True peer-to-peer networking (no relay servers, just a small signaling server to connect peers)
- Runs entirely in-browser, nothing to install
- 5-shape oscillator, filter, full ADSR amp envelope, and LFO routable to filter or amp.
- Exports to SoundFont (v1 and v2) so you can use your patch in popular DAWs
Real-time multiplayer on a synth sounds like the hard part. How are you handling latency when two people play at once, is it locked to a host clock or does everyone hear their own timing? I've been messing with Kontakt and Maschine solo for years so someone jumping into the same patch sounds like a blast.
A multiplayer synth right in the browser is exactly the thing I'd open mid-call to mess around with a friend without either of us installing a DAW. The day-one thing I'd want to know: after a jam, can I actually save or export what we made (an audio bounce, or MIDI/stems), or does the session vanish once everyone leaves the room? And when two of us play at once, is the timing locked to a shared clock, or does remote latency smear the groove?
Tried making a pad with a friend and the live cursors actually made it feel like we were tweaking the same knob at the same time. The peer-to-peer setup held up well too, no lag spikes even when both of us were automating the filter cutoff.
the SoundFont export is what pushes this past "cute weekend demo" for me, most collaborative synth toys leave you with nothing once the tab closes but this actually gives you something to drop into a real DAW afterward. love that it started as just messing around with friends
This is cool! Adding a second oscillator and making both oscillators tunable would be a relatively simple addition that could add more depth the synth voice.
true peer-to-peer with no relay server is the part I'd want to stress test. WebRTC p2p usually works fine until someone's behind a symmetric NAT or a locked-down corporate/school firewall, at which point the connection just fails silently unless you have a TURN relay as fallback. does Jamboree have one, or is it strictly "if peers can't find each other directly, no jam session"? curious how much of the weekend went into handling that edge case vs the synth itself
This is a really interesting take on sound design. The multiplayer angle stands out to me — most synth tools feel very solo, while this makes patch-building feel more like a shared creative workspace.
Curious how collaboration works in practice: can multiple people edit the same patch at the same time, or is there some kind of turn-taking system to avoid conflicts?
Really interesting concept. Collaborative creativity is still underexplored in music tools. I'd be curious to know whether users tend to design patches together from scratch or iterate on someone else's sounds more often.
SoundFont export from a browser-based synth is an unexpected feature to include at launch, most tools in this space stop at WAV or MIDI. Curious what the use case is there, are people expected to pull patches into a DAW workflow or is it more for archiving presets in a portable format?
I’m not a sound designer, but I really like tools that make creative work feel collaborative instead of lonely. sound design usually feels like someone tweaking knobs alone for hours, so the multiplayer/live cursor angle makes it immediately more playful. The peer-to-peer part is also a nice technical detail. for something browser-based and real-time, keeping it lightweight instead of building a huge backend around it feels right.
Also, SoundFont export makes this feel less like a toy and more like something people can actually take into their DAW afterward :)
Curious if you imagine Jamboree more as a serious collab tool for musicians, or more as a fun “jam with friends” experiment for now?
About Jamboree on Product Hunt
“Multiplayer synthesizer”
Jamboree launched on Product Hunt on July 8th, 2026 and earned 100 upvotes and 17 comments, placing #17 on the daily leaderboard. A multiplayer sound design tool. Fully browser-based with true peer-to-peer networking, SoundFont export, and live cursors/chat so you can shape patches with others in real time. Comes with a real synth engine: 5-shape oscillator, resonant filter, full ADSR amp envelope, and an LFO routable to filter or amp for evolving, moving sounds.
Jamboree was featured in Music (53.5k followers) and Tech (627.5k followers) on Product Hunt. Together, these topics include over 175.2k products, making this a competitive space to launch in.
Who hunted Jamboree?
Jamboree was hunted by Kartik Nair. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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