New: a JSON to XML converter that builds a real DOM tree

Hand-rolling XML with + and template strings is a trap: the moment a value contains &, <, or >, you either remember to escape it yourself or you ship broken XML. Our new JSON to XML Converter doesn’t take that risk — it builds a real DOM tree with the browser’s own document.implementation.createDocument(), createElement, and appendChild, then serializes it with new XMLSerializer().serializeToString(doc).

• Escaping handled by the DOM, not by hand — text assigned through el.textContent gets &, <, and > escaped automatically and correctly, because that’s what the API is for.
• Arrays repeat sibling elements, no wrapper — a "tags" array with two entries becomes two sibling <tags> elements, matching how XML is actually written in practice, not one <tags> element containing a list.
• Invalid keys are rejected, not silently broken — a JSON key that can’t be a valid XML element name (starts with a digit, contains a space) gets a clear error naming exactly which key failed, instead of emitting XML a downstream parser would choke on.
• You choose the root element name — defaults to root, but the field above the input lets you name it whatever your target schema expects.
• Private by default — the DOM tree and its serialization happen entirely in your browser; nothing you paste is ever sent to a server.

Need the other direction? The XML to JSON Converter parses real XML with the browser’s own DOMParser and walks the resulting tree — the same “let the platform do the parsing” philosophy, mirrored.