Use XML and YAML without hiding data-shape changes
This tool helps you represent XML elements, text, repeated children, and attributes as readable YAML, or build XML from a YAML object with one root key. It is intended for configuration reviews, feed diagnostics, migration planning, and hand-edited fixtures. Paste a small representative sample first, choose the direction, and compare the visible result with the source before you use a larger file. The page never sends the working data to NexaCurrent, so ordinary conversion stays inside the current browser tab.
Try a catalog root with repeated book elements, language attributes, titles, and prices. The result area shows the converted document and any warning about XML details that an object-shaped YAML document cannot reproduce exactly. Review the root element, repeated children, attributes, and text values before using the result. If the two formats describe data differently, the page explains the exact compromise instead of simply announcing that the conversion succeeded. That review step matters whenever the result will feed another application.
Choose a direction and provide one XML root
Use XML to YAML when you want an indented object view of elements, attributes, text, and repeated children. Use YAML to XML when the source has exactly one top-level key that can become the document root. Attribute names appear with an @_ prefix and text nodes may appear as #text, so keep those markers when they carry information you need.
Copy the visible result for a quick review or download the named XML or YAML file. The converter validates the source before producing output and refuses YAML aliases, XML document type declarations, malformed XML names, and YAML that cannot provide one XML root. These checks prevent a result that only looks complete while failing in the next program.
Inspect elements, attributes, and repeated children
Read the converted hierarchy before copying it. Confirm that the document root is present, repeated XML children became a YAML sequence, attributes still use their visible @_ names, and text values are not confused with child elements. Object-style YAML cannot promise identical XML comments, CDATA boundaries, processing instructions, or mixed-text order. The warning beside the result identifies this format-model difference instead of hiding it.
YAML can express aliases, tags, comments, and scalar styles that do not have a simple one-to-one XML representation. This page rejects aliases and converts the plain value structure only. XML output also requires valid element and attribute names. If another system enforces a schema or namespace policy, validate the downloaded file with that system before replacing the source.
Understand what XML and YAML cannot share exactly
XML attributes, repeated elements, and text nodes stay visible in the YAML object representation. Unicode names and values are preserved as text. Comments, processing instructions, CDATA boundaries, namespace declarations, and the exact order of mixed text and child elements may not survive an object-shaped round trip, so the page shows a review warning whenever XML is involved.
A YAML document intended for XML should use one clear root key and ordinary nested mappings or lists beneath it. Rename keys that contain spaces or begin with a character XML does not allow. For documents governed by an XSD, DTD, or vendor schema, treat this conversion as a reviewable draft and run the result through the destination validator.
Limits, errors, privacy, and a practical final check
Empty input, malformed XML or YAML, more than one YAML root, invalid XML names, excessive nesting, and oversized documents stop with a visible message. YAML aliases and XML document type declarations are not accepted. The input limit protects the browser tab from an accidental large paste; use a schema-aware desktop workflow for very large or regulated documents.
Reset clears the input, result, warning, and download. Before sharing a converted file, open it in the intended destination and compare the root, several repeated records, attributes, empty elements, and multilingual text with the source. A successful conversion confirms the rules described here; it does not confirm a private XML schema or an application's business rules.