KiCad, in your browser — now multiplayer.
The PCB design tool millions trust — now zero-install and collaborative. Open a board in a tab, invite your team, and edit the same schematic and layout together in real time. Open format. No install. Free to start.
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- Open source
- Your files stay in KiCad format
- Runs on Mac, Linux, Chromebook, iPad
Your whole team. One board. The same second.
Everyone else who says “real-time collaboration” means comments, check-out locks, or a read-only viewer. PCBJam means live co-editing: shared cursors, presence, and conflict-free edits on the same schematic and layout — the way you already work in Google Docs and Figma. Route a trace while a teammate places parts on the other side of the board. No emailing files. No “who has it checked out?”
- Live cursors & presence Coming soon
See who’s here and where they’re working.
- Conflict-free editing
CRDT sync merges everyone’s edits — no overwrite wars.
- Pin a comment to a pad Coming soon
Review and resolve right on the canvas.
Three things that set PCBJam apart.
Runs in a browser tab.
Zero install, zero toolchain. Mac, Linux, Windows, Chromebook, iPad — if it has a modern browser, it designs PCBs.
Truly multiplayer.
Live cursors, presence, and conflict-free co-editing on the same board. Plus pin-to-canvas comments for review.
Open & yours.
Real KiCad format in, real KiCad format out. Self-host it, run it offline as a PWA, or use our cloud — your files are never held hostage.
From link to layout in three moves.
Open a board.
Paste a link, drag in a .kicad_pcb, or pull from GitHub. It opens in seconds —
no install, no account wall to look.
Start a jam.
Share the URL. Teammates join with live cursors and presence. Everyone sees the same board update in real time.
Design, route & export — together.
Schematic capture, PCB layout, DRC/ERC, 3D, BOM, and Gerbers — the full flow, then hand off to any fab. Your call.
This is real KiCad — the whole thing.
PCBJam isn’t a web re-implementation with a fraction of the features. It’s the genuine
KiCad engine compiled to WebAssembly, running in your tab. Schematic capture. Multi-layer
PCB layout. Design rule checks. 3D view. BOM and Gerber export. The same
.kicad_pcb you’d open on the desktop — because it is the same tool.
- Schematic capture (Eeschema)
- PCB layout (Pcbnew)
- DRC / ERC
- Interactive router
- 3D board view
- BOM export
- Gerber / drill export
- Footprint & symbol libraries
- Net classes & constraints
- Push-and-shove routing
Design and collaborate in the browser — without surrendering your files.
Cloud EDA tools trap your designs in proprietary formats and clouds you can’t leave. Desktop open-source tools keep you free but strand you offline and solo. PCBJam refuses the trade-off: real KiCad format in and out, self-host it on your own server, run it offline as a PWA, and it’s open source. Collaborate in our cloud when it’s convenient — and walk away with every byte whenever you want.
PCBJam rides KiCad — a project backed for decades by CERN, the KiCad Services Corp, and a global community. This isn’t a VC bet that vanishes when the runway ends.
Coming from EAGLE, Altium, CADSTAR, or OrCAD?
KiCad is where designs are migrating — and PCBJam opens them in a browser tab, free, with nothing to install. Bring your board. Invite your team. Pick up where you left off.
Join the waitlist →Everyone picks two. We do all three.
Browser-native. Open & yours. Truly multiplayer. Flux is browser + collab but closed. KiCanvas is browser + open but read-only. LibrePCB is open + full but desktop-only. PCBJam is the only one in the middle.
We’re Emergence Engineering. We build hard things in the browser.
PCBJam exists because we got obsessed with a genuinely hard problem: running a full, native C++ EDA suite — and real-time multiplayer — entirely in a browser, on WebAssembly. That’s the kind of work we do for a living. Emergence Engineering is a full-stack software studio (🇪🇺, remote-first) that builds WASM ports, real-time collaborative editors, AI features, and the payments and infrastructure behind them — for startups and scale-ups who need the hard parts done right.
Trusted by teams at
“They are incredibly smart, you can trust them, and they’re great to work with. I cannot recommend them highly enough.” — Greg Detre, Chief Data Scientist & CTONeed something hard built? → Talk to the team
Free to start — and the core stays open.
The editor and the open file format are free — design entirely in your browser, with your files stored locally on your own machine. When you want PCBJam’s cloud — hosted storage, sync across your devices, and shared workspaces for your team — that’s the paid part. The open core stays free, and your local files are always yours.
The full editor, free. Your files live right in your browser.
Your .kicad_pcb / .kicad_sch, open forever.
Hosted storage, cross-device sync, and shared team workspaces.
AI when you want it — opt-in, never a black box.
Everyone else leads with an “AI hardware engineer.” We lead with you and an open tool you control. AI assistance is on the roadmap as an opt-in helper — never the thing standing between you and your own board.
Be there when the first jam opens.
Early access rolls out in waves. Join the waitlist and we’ll save you a seat.
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Get early-access invites and product updates. No spam, unsubscribe anytime. · Privacy policy
- Open source
- Built on KiCad
- Built by Emergence Engineering