XML Editor – Online Code Editor with Validation

Write and edit XML documents efficiently with our feature‑packed online editor. Syntax highlighting, auto‑completion, and real‑time well‑formedness checking speed up your workflow. For advanced validation, upload an XSD schema to validate structure and data types.

Editing Features

• Syntax highlighting for tags, attributes, values, and comments
• Auto‑close tags (type <book> and it automatically adds </book>)
• Auto‑indent when pressing Enter
• Find and replace with regex support
• Unlimited undo/redo
• Format / pretty print with customizable indentation
• Line numbers and bracket matching
• Dark / light themes

XSD Validation

Upload an XML Schema (XSD) file, and our editor will validate your XML against it. Errors are displayed with line numbers and descriptive messages, helping you fix namespace issues, missing required elements, or incorrect data types.

Example Use Cases

• Modify configuration files (web.config, app.config)
• Create or edit SOAP envelope templates
• Develop XML data files for legacy systems
• Learn XML syntax with instant feedback