Altova XMLSpy 2026 Professional Edition

YAML stands for YAML Ain't Markup Language. It is a popular data serialization language that is a superset of JSON.

Create and edit YAML

XMLSpy provides a Text View and Grid View for editing YAML documents. These views provide a range of useful features, and these are described in the following topics:

•Create and Edit YAML Documents

•YAML Text View

•YAML Grid View

•Anchors and Aliases

•Generate JSON Schema from YAML Document

•Generate YAML Document from JSON Schema

•Convert between YAML and JSON

Validate YAML and its schemas

YAML documents can be validated in XMLSpy against JSON schemas that are written in either JSON format or YAML format. These schemas can be edited in Schema View. The following sections describe YAML validation features:

•Validate YAML Documents

•YAML Schema View

Generate and convert documents to/from YAML

XMLSpy provides the following file generation and conversion features:

•Generate JSON Schema from YAML Instance

•Generate YAML Instance from JSON Schema

•Convert between YAML and JSON