scraper
n.a tool used to remove something from a surface, like dirt from a window. In computing, it is a program that copies data from a website automatically.
n.an instrument or tool used for removing a substance from a surface; in a technical context, a software application that extracts data from web pages. Informal in the computing sense; often used in the phrase 'web scraper'.
“He used a plastic scraper to remove the old paint from the wall.”
“The archaeologist used a small metal scraper to carefully remove the top layer of soil without damaging the bones.”
“While a manual scraper might take hours to gather the necessary data, an automated web scraper can extract thousands of records in seconds, provided the site's security protocols are bypassed.”
From scrape + -er.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.