XSD diagram online

Reading an XML Schema as text means keeping a dozen xs:complexType and xs:group references in your head. The diagram does that for you, in the notation people know from XMLSpy and Oxygen:

• Compositors — xs:sequence, xs:choice and xs:all as their own symbols, so you see at a glance which children come in order and which exclude each other.
• Cardinalities — minOccurs/maxOccurs on every element: optional elements dashed, repeating ones stacked.
• Types and documentation — the type name, facets and the first line of xs:documentation next to each element.
• Expand and collapse — open a branch, follow a type reference, collapse it again; pan and zoom with mouse or touch.
• One selection, three views — clicking a box selects the node in the tree and the source view jumps to its line.

Real-world schemas

Industry schemas are rarely one file. Drop a .zip with the main schema and its xs:import, xs:include and xs:redefine targets, or several .xsd files at once — the viewer resolves the references and draws the bundle as one model. Schemas on the web load by URL (/url?src=https://…), with GitHub, GitLab and Bitbucket browse links rewritten to the raw file.

Export and share

• PNG or SVG of the current diagram, for slides and documentation.
• HTML documentation of the whole schema — see XSD documentation generator.
• Share links to a node: the link opens the same schema and selection for a colleague when the schema was loaded by URL or from the FundsXML releases.

Try it with a real schema: the FundsXML releases load with one click.

Open the viewer