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January 15, 2026 · AI & Agents · 2 min read

A Browser That Takes an Objective and Forks Its Own Subagents

ACIDaemon is a local Chromium agent that turns a plain-language objective into parallel subagents, each browsing in its own isolated tab.

ACIDaemon, short for Autonomous Computer Interface Daemon, is a browser you hand a job to and then walk away from. You describe an outcome in plain language. It plans the work, browses, researches, signs in, uses tools, writes and runs code, and delegates pieces of the task to subagents. It keeps going while you are gone, and hands you the wheel the moment you want to take over.

One objective, many browsers

The interesting move here is the fan-out. Give ACID something like "find the ten most interesting new open-source AI browser projects and compare them" and it does not grind through the work in a single thread. A primary agent handles planning and synthesis, then forks parallel subagents that each run in their own isolated browser: a GitHub scout, a Hacker News scout, a Reddit scout, and a writer assembling the comparison table. In the run shown on the site, that spread turned 92 raw candidates into 30 qualified projects, deduplicated across four sources, while a live panel tracked four running agents across seven tabs, 83 model calls, and about 84 cents of compute.

Isolation per subagent is the detail that makes this safe to run unattended. Each agent gets its own browser context, so a scout reading forty-seven repositories is not stepping on the tab where another agent is authenticating.

No setup, no key juggling

The other deliberate choice is what ACID removes. There is no model picker, no API keys to paste, no provider setup to configure. You describe the outcome and it handles the plumbing underneath. Sign-ins come from an encrypted vault that types your passwords into the page but never exposes them to the model driving the browser, which is the right boundary for an agent you are trusting to authenticate on your behalf.

It runs on local Chromium rather than a headless cloud box, so the work happens on your machine with your session, not on someone else's infrastructure.

You can try it free with five dollars of compute and no card required. If you want to watch an agent quietly turn a vague research request into a finished comparison document, the live site is the place to start.

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