Plain-English tasks
Describe the outcome you want — fill a form, scrape a table, walk a multi-step flow — without writing selectors by hand.
Open source · Experimental · v0.6.0
AI browser agent for Chrome
Browsergent is Claude Code for the browser — an agent in your side panel that sees the page, writes JavaScript, and acts until the task is done.
BYOK · Anthropic-compatible · Chrome MV3 · MIT / Apache-2.0
What is an AI browser agent?
An AI browser agent uses a large language model to operate a web browser the way a person would: read the page, choose the next action, click, type, navigate, and recover when something fails. Browsergent is a Chrome extension AI agent built for that loop — not a hosted RPA cloud and not a headless script runner.
You keep using your normal Chrome profile. The agent runs in the side
panel, observes the active tab, and drives it with a single tool:
run_js. That design keeps model reasoning separate from
browser side effects, so every action stays typed, inspectable, and
local.
LLM reasons.
JavaScript acts.
- 01 You describe the task Plain English in the Chrome side panel.
- 02 Agent generates JS The LLM’s only browser tool is run_js.
- 03 Runtime runs page.* Typed click, fill, goto, snapshot commands.
- 04 Observes & iterates Results and errors feed the next turn.
Built for real tabs
Unlike remote browser farms, Browsergent operates on the page you
already have open — including authenticated sessions — through a
sandboxed page.* protocol.
Why teams try Browsergent
Sees the page
Structured snapshots expose refs, roles, and labels so the model can ground actions in the live DOM.
Acts via run_js
The model never touches Chrome APIs directly. JavaScript runs in a sandbox that only emits typed page.* commands.
Bring your own key
Use Anthropic, DeepSeek, GLM, or any Anthropic Messages–compatible endpoint. Your key stays in the browser.
Skill-aware
Activate reusable skills and attach session files so repeated workflows stay consistent across runs.
Fully local Chrome
No remote browser farm. Browsergent drives the tab you already have open — cookies, login, and all.
What people automate
All use cases →Form filling & multi-step flows
Walk sign-up, checkout, or admin wizards that break brittle scripts when the UI shifts.
Research & extraction
Read pages, follow links, and pull structured facts from sites that don’t offer clean APIs.
QA smoke checks
Have the agent click through critical paths and report what broke — on your real browser profile.
Internal tools & dashboards
Automate ops work inside authenticated SaaS UIs where traditional RPA is too rigid.
Browsergent vs classic automation
| Approach | You write | Runs on | Best for |
|---|---|---|---|
| Browsergent | Plain-English goals | Your Chrome tab | Changing UIs, exploratory flows, logged-in work |
| Playwright / Selenium | Selectors & scripts | Headless / remote browsers | Stable CI, deterministic test suites |
| Hosted browser agents | Prompts + cloud config | Vendor browser farm | Teams that want managed infra |
Browsergent is the right fit when you want open-source browser automation with an LLM in the loop, local control, and a BYOK model — not when you need a sealed enterprise RPA platform.
Quick answers
Full FAQ →What is Browsergent?
Browsergent is an open-source AI browser agent for Chrome. It lives in a side panel, reads the active page, and acts on it by generating JavaScript that runs through a sandboxed page.* command protocol.
How is it different from Playwright or Selenium?
Playwright and Selenium are scripted automation frameworks. Browsergent is an LLM agent: you describe the goal, it decides the steps, recovers from errors, and works on your real logged-in Chrome tab instead of a headless farm.
Does Browsergent send my browsing data to a cloud?
The extension runs locally. Model calls go only to the API base URL you configure (for example Anthropic). There is no Browsergent cloud that brokers your session.
Is Browsergent free?
Yes — MIT OR Apache-2.0. You pay only for the LLM provider key you bring (BYOK).
Build from source
git clone https://github.com/Irvingouj/Browsergent.git
cd Browsergent && npm install && npm run build
Then load dist/ in chrome://extensions with
Developer mode on — or grab the
prebuilt zip.
Try the AI browser agent.
Free, open source, and ready for Chrome in a few minutes.