XML Tag Formatter

Purpose: provide a reliable transformation of XML text into a canonical, human- or machine-friendly form. The tool supports two modes: Pretty for readability with configurable indentation and Minify for compact, single-line output. Conceptually, it parses the input into a structured tree and then serializes that tree with user-selected formatting rules. It preserves comments and processing instructions when instructed and avoids network access by disabling external entity expansion. Audience: developers, data engineers, and QA analysts who process XML in APIs, logs, configuration files, or data interchange. Value: consistent formatting, faster diffs, easier auditing, and improved readability in pipelines. Core differentiators include explicit mode control, optional indentation customization, and robust error reporting for malformed input. Use cases include preparing XML for code reviews, dashboards, or test data, and aligning XML across teams to reduce merge conflicts. Features such as preserving DOCTYPE, controlling declaration output, and explicit handling of whitespace contribute to reliability in automated workflows.