YAML to XML Converter
Convert YAML to XML online, free and instantly. Runs entirely in your browser — nothing is uploaded, and there is no file size limit.
Input
Output
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Drop a file to load it
About this tool
Convert YAML into XML in a single step. YAML is the configuration format used by Kubernetes, CI pipelines and Docker Compose; XML is the markup format behind SOAP, RSS, sitemaps and countless enterprise feeds. The converter is structure-aware rather than a text substitution, so nesting, types and ordering are preserved.
When you would use it
- Feeding YAML data to a service that only accepts XML
- Migrating a dataset from YAML to XML
- Inspecting YAML in a shape that is easier to read
Worked example
id: 4815 name: Ada Lovelace active: true score: 91.5 roles: - admin - editor address: city: London postcode: NW1
<?xml version="1.0" encoding="UTF-8"?>
<root>
<id>4815</id>
<name>Ada Lovelace</name>
<active>true</active>
<score>91.5</score>
<roles>admin</roles>
<roles>editor</roles>
<address>
<city>London</city>
<postcode>NW1</postcode>
</address>
</root>
Things worth knowing
- YAML sequences become repeated elements, and mappings become nested elements.
Questions
Frequently asked
Is YAML to XML conversion lossless?
Values and structure are preserved exactly. Comments and anchors are not, because they are YAML features with no equivalent in the target format — anchors are expanded into the values they reference.
Why convert YAML to XML?
YAML is the configuration format used by Kubernetes, CI pipelines and Docker Compose, while XML is the markup format behind SOAP, RSS, sitemaps and countless enterprise feeds. Converting is usually about handing data to a tool that only speaks one of them — a legacy service or SOAP endpoint, for instance.
Is my data uploaded anywhere?
No. Every tool on JSONWorks runs entirely in your browser using JavaScript. Your input is never sent to a server, never logged and never stored. The simplest proof is to disconnect from the internet — the tools keep working. The site does load Google Fonts and a Google Analytics page-view tag, so you will see those two requests in your network tab, but neither receives anything you type or paste.
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