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Roar
Open-source browser that keeps each AI agent in its lane
1 follower
Open-source browser that keeps each AI agent in its lane
1 follower
Roar is a free, MIT-licensed sidebar browser for Mac with a built-in MCP server. Each agent sees its own tabs, wrapped in mint so you can watch. It groups its work, names tabs on request, asks you with buttons and stays out of spaces you block.
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Hi Product Hunt, I'm the maker of Roar.
I run several coding agents at once. When they all share one browser they trip over each other's tabs. I can't tell which tab is mine. And I can't easily keep them out of my bank or my mail.
Roar is a sidebar browser for Mac built around that problem. It ships an MCP server, so Claude Code, Codex, Cursor or any MCP client can drive it.
What's different:
Each agent stays in its lane. An agent sees the pages it opened plus your own tabs. Roar hides other agents' pages from it. Ghost tabs and spaces you close to agents are hidden inside the browser itself. Agents can't list them or open them. Turning agents off in Settings closes the debugging port.
You can see who is driving. Agent tabs wear a mint frame and an Agent tag. Pages an agent opens for one task sit in one named tab group.
Names that make sense. Hover a tab, a group or a space and ask your agent to name it. Or rename every tab in a space at once.
It asks you, then waits. Agents post sidebar cards and ask questions with buttons. Your answer goes back to the agent.
Agent views. A board shows every agent session, its state and its tabs. Agent files lists every CLAUDE.md, AGENTS.md and rules file on your Mac.
It's also a full browser: spaces with separate logins, pinned tabs, split view, a command bar, reader mode and Chrome extensions with uBlock Origin Lite. Settings > Agents connects Roar to your agent clients for you. Your Arc spaces and pinned tabs come over on first launch.
It's free and MIT licensed. macOS is the main build; a Windows x64 preview exists. It's early, so bug reports on GitHub are very welcome: https://github.com/roarbrowser/roar
Roar is independent and not affiliated with or endorsed by The Browser Company, Apple, Google, Anthropic, OpenAI, Microsoft/GitHub, Anysphere (Cursor), Alibaba (Qwen) or the uBlock Origin project. Product names are trademarks of their owners.