WebLogic Server is an application server that runs on a middle tier, between back-end databases and related applications and browser-based thin clients. It is a Java EE application server currently developed by Oracle Corporation, which acquired WebLogic Server when it purchased BEA Systems in 2008. WebLogic Server provides essential features for developing and deploying mission-critical e-commerce applications across distributed, heterogeneous computing environments. Some key features and capabilities of WebLogic Server include:

• Support for databases including Oracle Database, Oracle MySQL Enterprise, Microsoft SQL Server, and IBM DB2.
• Native integration with other middleware and APIs.
• Support for a security model that separates security code from business logic.
• Connectors that make it possible for any legacy application on any client to interoperate with server.
• WebLogic Kubernetes Toolkit Enhancements.
• Integration with Oracle Coherence, Helidon, Java SE, and GraalVM EE.
• Highly available, secure, and scalable environment for critical applications.
• Support for Java EE 8 Full Platform since version 14.x.

Enterprises use WebLogic Server to develop distributed applications, enabling users to access applications from a client, such as a web browser, mobile device, or any other type of client program or device using a program written in Java or any other language, and systems on the back end, such as databases, enterprise information systems, or mainframe applications. WebLogic automates many system-level tasks that would otherwise have demanded programming time because Java EE applications are standardized modules. WebLogic is popular within the commercial sphere, where companies require reliable software that comes with enterprise support.