SwarmMarshal
One clipboard across machines
Copy on the Mac, paste on the PC — text, rich HTML, images, and file lists cross between your trusted devices.
SwarmSpan · free tray utility for Mac & PC
Copy on the Mac. Paste on the PC.
A tiny tray utility for people who live between two computers. The clipboard crosses machines, files move directly — no email-to-yourself, no cloud drive — and work can be handed from one machine to the other.
Utility, not an app
Mac & PC
Direct, no cloud detour
Agents can drive it (MCP)
What it does
A thin layer that removes the tax of two machines.
Direct file handoff
Push or pull files device-to-device with SHA-256 metadata. Streams to disk on both ends; multi-GB safe; resumable.
Peer-agent work requests
Hand a structured job to an agent on another machine — build on one, sign or ship from the other — and track it on a local ledger.
Your devices only
A trusted-device lane between computers you own. No cloud detour; your files and clipboard don't take a trip through someone else's servers.
The developer story
One developer. Two machines. Zero chair-swiveling.
This is how SwarmMarshal itself gets built: Claude Code and Codex on the PC drive an agent on the Mac through SwarmSpan, and the two machines work as one team.
Delegate across the desk
From Claude Code or Codex on the PC, hand the Mac a structured job — a goal, context, success criteria, and the artifacts you expect back. You can even name which agent should run it (Claude, Codex, Gemini, Ollama…) and whether it runs headless or in a visible session.
Test and debug in stereo
The two agents message each other while they work: reproduce a bug on the platform that shows it, fix it on the other, and pass patches and logs through the shared handoff folder instead of a chat window.
Git flows both ways
Each machine works its own checkout. The agents coordinate the pushes, pulls, and rebases between them, so a fix made on one platform is building on the other a minute later.
Sign and ship from the right machine
Apple code-signing has to happen on a Mac. The PC-side agent asks the Mac to build and sign the release, the Mac stages the artifacts — SHA-256 hashed — in its handoff folder, and the PC pulls them and ships.
“Having my PC drive actions on my Mac saves me a ton of time — the two machines coordinate to test and debug, drive git back and forth, and run the builds and signing for releases.”
— Scott Crossen, creator of SwarmMarshal
Paired first — it's no scarier than screen sharing.
Machines can't talk at all until you pair them: a one-time code shown on one machine and typed on the other, the same trust ceremony as approving a screen-share. Only your paired devices exist to each other — there's no account and no server in between. On top of that, remote execution is separately opt-in (the machine's owner enables the agent bridge and chooses what it runs), files outside shared folders need trust or a per-request approval, and every delegated job — request, status, reply, artifacts — lands in a persistent work ledger you can audit.
Part of the Swarm family
The fabric the other products run across.
SwarmSpan is what lets your owned context and your agents stop being trapped on one computer.
SwarmMarshal →
SwarmMarshal's assistant finds SwarmSpan automatically — “send that file to the Mac” becomes part of the conversation.
SwarmMarshal CRM →
Pull CRM files down to whichever machine you're working on.
MCP + SwarmSpan →
SwarmSpan is an MCP server — point any agent at it and let it execute across your devices.
Free
Stop emailing yourself files between your own computers.
Install SwarmSpan on each machine and your desk becomes one workspace.