The Graph Database Support plugin for JetBrains IDEs provides extensive support for Neo4j, a popular graph database. The plugin offers features such as syntax highlighting and error reporting for Cypher, the query language used in Neo4j. It also includes autocompletion, refactoring, reformatting, and user-defined function and procedure support. Additionally, the plugin provides documentation, language injection, data sources, and console output for improved development experience. With over 15 months of updates and more than 16,000 downloads, this plugin is a valuable tool for developers working with Neo4j.