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Browser Use Architecture and Runtime

1. The workspace shape​

The repo points to a framework with these main concerns:

AreaWhy it matters
browser_use/Core automation and browser-agent logic
examples and docsReference workflows and usage patterns
cloud docsRemote-browser and operations model

The architecture is specialized around one question:

how do we make websites usable for agents

2. The runtime mental model​

At runtime, Browser Use usually does this:

  1. start a browser session,
  2. inspect the current page,
  3. turn page state into structured context,
  4. decide the next action,
  5. repeat until the task is complete.

That sounds simple, but it is the core technical challenge of browser agents.

3. Why page understanding matters​

Browser Use is more than a click runner. Its value comes from helping the agent understand:

  • what is on the page,
  • which actions are possible,
  • which state changes matter,
  • when the task has actually progressed.

That is what separates it from brittle recorder-style automation.

4. Local vs cloud runtime​

Cloud support adds an operational layer on top of the same basic browser-agent idea:

  • managed remote browsers,
  • shared visibility,
  • more repeatable execution.

So the architecture is best seen as a browser-agent core with local and hosted runtime surfaces.

5. What to read first in code​

Start with:

  1. the quickstart docs,
  2. the main browser_use/ package,
  3. examples,
  4. cloud docs once the local runtime feels intuitive.