Peerd

peerd is a browser extension that turns the user's existing Chrome or Firefox browser into an AI agent workstation. Instead of driving a separate headless browser from the outside, it runs the agent inside the browser the user already uses, with their tabs, sessions and extensions intact, and with no background process, sidecar or cloud server in between. The vendor says the agent can create local sandboxes, write JavaScript notebooks, run compiled tools and full Linux virtual machines in WebAssembly, build client side apps, and set up peer to peer connections between agents using WebRTC. Isolated actors, adaptive site clients, local compute, apps and memory are listed among its parts. Models can be local or remote, and users bring their own keys. The browser supplies the runtime, permissions and sandboxing, and the extension is written in readable, uncompiled JavaScript. MCP support is optional rather than the core design. The site contrasts peerd with AI browsers such as Comet, Atlas and Dia, with browser automation services such as Playwright MCP and Browserbase, and with terminal coding agents such as Claude Code, OpenCode and Aider, none of which can use the page the user is looking at or the sessions they are logged into. It suits users and developers who want an agent that works with real logged in pages, with everything handled client side. A demo is available, and the extension can be installed from GitHub. Chrome Web Store and Firefox add on listings are marked as coming soon. The site publishes no pricing.