oXygen XML Developer

The developer‑focused edition offers an interface tuned for editing XML and related schemas. It builds on the Oxygen XML Editor IDE and centers on source editing, schema design, and XSLT development with debugging capabilities. Features include intelligent XML editing, validation, support for XML databases, and tools for creating and visualizing schemas such as XSD and Relax NG.

In addition to core XML work, the suite supports a range of transformation and query languages. It provides editors and debuggers for XSLT, XQuery, JSON, YAML, and HTML, along with utilities for XPath, XML signatures, and web‑service technologies like WSDL. The environment includes visual helpers such as grid and outline views, XInclude handling, and refactoring tools.

The product is available for macOS, distributed as a standalone application or an Eclipse plugin, and is positioned as a stable, mature tool for developers who need comprehensive XML‑centric editing, validation, and transformation capabilities.