--- sidebar_label: Puppeteer --- # Puppeteer class The main Puppeteer class. IMPORTANT: if you are using Puppeteer in a Node environment, you will get an instance of [PuppeteerNode](./puppeteer.puppeteernode.md) when you import or require `puppeteer`. That class extends `Puppeteer`, so has all the methods documented below as well as all that are defined on [PuppeteerNode](./puppeteer.puppeteernode.md). **Signature:** ```typescript export declare class Puppeteer ``` ## Remarks The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `Puppeteer` class. ## Methods | Method | Modifiers | Description | | ----------------------------------------------------------------------------------------------------- | --------- | --------------------------------------------------------------- | | [clearCustomQueryHandlers()](./puppeteer.puppeteer.clearcustomqueryhandlers.md) | | | | [connect(options)](./puppeteer.puppeteer.connect.md) | | This method attaches Puppeteer to an existing browser instance. | | [customQueryHandlerNames()](./puppeteer.puppeteer.customqueryhandlernames.md) | | | | [registerCustomQueryHandler(name, queryHandler)](./puppeteer.puppeteer.registercustomqueryhandler.md) | | | | [unregisterCustomQueryHandler(name)](./puppeteer.puppeteer.unregistercustomqueryhandler.md) | | |