Web Scrapers are tools or software used to extract data from websites. They automate the process of retrieving and parsing web content, transforming it into structured data formats like CSV, JSON, or databases. Web scrapers can handle various types of web pages, from simple static HTML to complex dynamic content generated by JavaScript. They are used in numerous applications, including price comparison, news aggregation, sentiment analysis, and competitive intelligence. While web scrapers can greatly facilitate data collection, their use must comply with legal and ethical guidelines, respecting website terms of service and data privacy regulations.