Free macOS app for running multiple Claude Code sessions side by side. Split panes, 7 themes, command palette, agent kanban board, AI memory, prompt compression, usage tracking, and broadcast mode. Native Swift/AppKit. Signed and notarized.
Hey everyone. I'm Brandon, and I built Flock because I was tired of the options for running Claude Code.
Most terminal apps look like they were designed in 2005. VS Code and Cursor work, but opening a full IDE just to run terminal sessions felt wrong. And no matter what I used, running multiple Claude Code sessions meant juggling tabs and losing track of what each agent was doing.
So I built what I actually wanted: a native macOS app that looks good, runs fast, and is purpose-built for parallel AI coding sessions. Each pane shows live activity indicators, token usage, and status. You see everything at a glance.
What makes it different: - Split panes with auto-tiling (Cmd+D / Cmd+Shift+D) - 7 hand-picked themes from light to dark - Command palette (Cmd+K) for fast navigation - Agent mode with a kanban board for parallel tasks - Wren compression that cuts token usage by up to 60% - Built-in usage tracking so you never hit your limit by surprise - Broadcast mode to type into all panes at once
It's free, open source, and native Swift/AppKit. No Electron.
Would love your feedback. What features would make this more useful for your workflow?
Really cool concept — managing multiple Claude Code agents in one window is something I've wished for. I'm building a native macOS video editor as a solo dev, and I regularly run parallel agents for different parts of the codebase.
This would save me a lot of window juggling. Nice work!
How well does the wren compression work? Multiple Claude sessions running at the same time sounds like a token killer, which I expect is what spurred the wren compression. Is this condensing all the prompts I give and how could I be sure it kept the details of what I say?
what does broadcast mode actually do here, does it fire the same prompt at every agent at once, or is it more of a task distributor that splits work across sessions?
if it's the former, same prompt to all, then you could run the same instruction across multiple worktrees simultaneously and see which approach holds up best. that's less about orchestration and more about parallel experimentation, which nobody else seems to be building toward.
the kanban board on top of that changes the mental model completely. instead of context-switching between terminals, you're actually managing a swarm.
Brandon Anderson
Hey everyone. I'm Brandon, and I built Flock because I was tired of the options for running Claude Code.
Most terminal apps look like they were designed in 2005. VS Code and Cursor work, but opening a full IDE just to run terminal sessions felt wrong. And no matter what I used, running multiple Claude Code sessions meant juggling tabs and losing track of what each agent was doing.
So I built what I actually wanted: a native macOS app that looks good, runs fast, and is purpose-built for parallel AI coding sessions. Each pane shows live activity indicators, token usage, and status. You see everything at a glance.
What makes it different:
- Split panes with auto-tiling (Cmd+D / Cmd+Shift+D)
- 7 hand-picked themes from light to dark
- Command palette (Cmd+K) for fast navigation
- Agent mode with a kanban board for parallel tasks
- Wren compression that cuts token usage by up to 60%
- Built-in usage tracking so you never hit your limit by surprise
- Broadcast mode to type into all panes at once
It's free, open source, and native Swift/AppKit. No Electron.
Would love your feedback. What features would make this more useful for your workflow?