JetBrains Big Data Tools is a suite of software products for working with large amounts of data in various programming languages such as Java, Scala, and Python. The tools provide support for data processing, analysis, visualization, and monitoring in Big Data applications. Some of the key features of JetBrains Big Data Tools include an integrated development environment (IDE), data processing frameworks, database management tools, and cloud integration capabilities. These tools are designed to increase productivity and efficiency for developers working on Big Data projects.