AWS Glue is a serverless data integration service provided by Amazon Web Services that simplifies the process of discovering, preparing, moving, and integrating data from various sources for analytics, machine learning, and application development. It offers capabilities like automated data discovery through crawlers, a central metadata repository with the AWS Glue Data Catalog, and tools for visually or programmatically creating ETL (extract, transform, and load) pipelines. By eliminating the need to manage infrastructure, AWS Glue allows users to focus on data transformation and analysis, supporting a wide range of data integration tasks and workloads.