Converting Word documents to HTML is an indispensable requirement in enterprise development, document management systems, and online document preview scenarios. HTML features cross-platform compatibility, no dedicated reader dependency, and seamless embedding into web pages for direct display. Within the Java ecosystem, Free Spire.Doc for Java stands out as a free, lightweight document processing library. It enables seamless, non-intrusive conversion from Word DOC/DOCX to HTML without installing Microsoft Office. This guide walks you through the entire implementation, including environment setup, basic conversion code, and advanced HTML export customization. 2. Dependency Setup & Use Cases 2.1 Maven Configuration (Recommended) Free Spire.Doc for Java is a free community edition built for core Word operations: document reading, writing, and format conversion. It runs on pure Java with no Office dependency and only has mild page limitations.…