XML to YAML Converter

The XML to YAML Converter is a free online tool that convert xml documents to yaml. handles elements, attributes, text content, mixed content, and repeated sibling arrays. 100% client-side.. It runs entirely in your browser with no installation or sign-up needed.

No. Parsing uses native DOMParser and js-yaml. Your data never leaves your device.

Prefixed with a configurable marker (@ by default). Change to _ or attr_ in the options panel.

Sibling elements with the same tag are automatically converted into a YAML array, preserving order.

Yes, the XML to YAML Converter is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.

Absolutely. The XML to YAML Converter processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the XML to YAML Converter is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the XML to YAML Converter in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The XML to YAML Converter works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

XML and YAML both describe structured, hierarchical data, but they express it differently. XML wraps every value in opening and closing tags and supports attributes, namespaces, and mixed content, which makes it verbose but explicit. YAML uses indentation instead of tags, so the same data is shorter and easier to scan, and it is a superset of JSON. The biggest practical gap is that YAML has no native concept of attributes or mixed content, so a converter must invent a convention to carry that information across. That is why this tool writes XML attributes as ordinary keys behind a marker like @ and stores text that sits beside child elements under a #text key. Paste your XML here to see exactly how each construct maps into clean, indented YAML.

Those @-prefixed keys are your XML attributes. YAML has no separate slot for attributes the way XML does, so to avoid losing them or clashing with a child element of the same name, the converter writes each attribute as a normal key behind a marker. By default that marker is @, so id="bk101" becomes @id: bk101 sitting alongside the element's other keys. The symbol is purely a naming convention, not special YAML syntax, and it keeps attributes visually distinct from real child elements. If @ conflicts with your style guide or downstream parser, open the options panel and switch the prefix to _ or attr_ instead. Whichever you choose is applied consistently across the whole document, so you can paste your XML, pick the marker your codebase already uses, and copy the result.

You do not need to restructure anything by hand. Paste your XML into the editor and the converter walks the document automatically: each element becomes a mapping key that nests exactly as deep as the original markup, attributes are written as keys behind a configurable marker so they never collide with child names, and pure-text elements collapse into plain scalar values rather than redundant objects. The single XML root becomes the top-level YAML key, mirroring the one-root rule XML enforces. A small dashboard reports the elements, attributes, text nodes, and maximum nesting depth it found, so you can confirm the shape looks right before copying. You can also set the indent to 2 or 4 spaces to match Kubernetes, Docker Compose, or your CI config conventions. Load the sample document first to see all of this in action.

When several sibling elements share the same tag name, the converter collapses them into a single YAML array instead of producing duplicate keys, which YAML does not allow. For example, three <book> elements under a <catalog> become a list of three entries under one book key, and their original document order is preserved so nothing is reordered or dropped. A single occurrence of a tag stays a plain mapping rather than a one-item list, keeping the output natural to read. This automatic detection is what lets catalog files, RSS feeds, and SOAP payloads convert into idiomatic YAML lists without any manual editing. If you also enable Sort keys, attributes are ordered first and then child elements, which makes diffs between two converted files much easier to review. Paste your repeating XML structure to watch it become a clean array.

A parse error means the browser's XML parser could not read your input, so the tool stops rather than emit broken YAML. The usual causes are an unclosed or mismatched tag, two root elements where XML allows only one, or a stray ampersand or angle bracket that was not escaped as an entity such as &amp; or &lt;. Because validation runs as you type, the tool surfaces the exact parser message pointing at what went wrong, which makes it a quick way to sanity-check hand-written XML, not just convert it. Fix the flagged issue, wrap everything in a single root element if needed, and the YAML reappears instantly. Note that XML comments and xmlns declarations are not carried into the YAML, and namespace prefixes remain as part of the tag name. Paste your markup to see precisely where any error sits.