# AsyncChromiumLoader

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/document_loaders/chromium/AsyncChromiumLoader)

Scrape HTML pages from URLs using a
headless instance of the Chromium.

## Signature

```python
AsyncChromiumLoader(
    self,
    urls: List[str],
    *,
    headless: bool = True,
    user_agent: Optional[str] = None,
)
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `urls` | `List[str]` | Yes | A list of URLs to scrape content from. |
| `headless` | `bool` | No | Whether to run browser in headless mode. (default: `True`) |
| `user_agent` | `Optional[str]` | No | The user agent to use for the browser (default: `None`) |

## Extends

- `BaseLoader`

## Constructors

```python
__init__(
    self,
    urls: List[str],
    *,
    headless: bool = True,
    user_agent: Optional[str] = None,
)
```

| Name | Type |
|------|------|
| `urls` | `List[str]` |
| `headless` | `bool` |
| `user_agent` | `Optional[str]` |


## Properties

- `urls`
- `headless`
- `user_agent`

## Methods

- [`ascrape_playwright()`](https://reference.langchain.com/python/langchain-community/document_loaders/chromium/AsyncChromiumLoader/ascrape_playwright)
- [`lazy_load()`](https://reference.langchain.com/python/langchain-community/document_loaders/chromium/AsyncChromiumLoader/lazy_load)
- [`alazy_load()`](https://reference.langchain.com/python/langchain-community/document_loaders/chromium/AsyncChromiumLoader/alazy_load)

---

[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/4b280287bd55b99b44db2dd849f02d66c89534d5/libs/community/langchain_community/document_loaders/chromium.py#L13)