Oracle APEX is a low-code development platform from Oracle Corporation that enables developers to build scalable, secure, and enterprise-level web and mobile applications. It is a web-based integrated development environment (IDE) that provides a range of features including wizards, drag-and-drop layout, and property editors to simplify the process of building applications and pages. Here are some key features of Oracle APEX:

• Low-code development: Oracle APEX is a low-code platform that enables developers to build applications quickly and easily without needing to be an expert in a vast array of technologies.

• Scalability: Oracle APEX provides a scalable environment that can be deployed anywhere, including on-premises or in the cloud.

• Security: Oracle APEX provides a secure environment to build and deploy applications.

• Integration with Oracle Database: Oracle APEX is a fully-supported no-cost feature of the Oracle Database and can be installed anywhere Oracle Database runs.

• Responsive design: Oracle APEX provides responsive development out of the box, which means that applications built with APEX look and run great on both desktop and mobile devices.

Oracle APEX can be used to develop a wide variety of solutions, including productivity applications, data management applications, and mission-critical enterprise systems. It is currently a fully-supported no-cost feature of the Oracle Database and can be installed anywhere Oracle Database runs. Additionally, Oracle APEX is offered on Oracles Cloud across various services including Autonomous Database Cloud Services and the stand-alone fully managed APEX Application Development service.