Validator

Look up validator in Wiktionary, the free dictionary.

A validator is a computer program used to check the validity or syntactical correctness of a fragment of code or document. The term is commonly used in the context of validating HTML, CSS and XML documents or RSS feeds though it can be used for any defined format or language.

See also

• Online judge
• W3C Markup Validation Service

External links

• W3C QA Toolbox - Validators, checkers and other tools
  • W3C HTML Markup Validation Service
  • W3C CSS Validation Service
  • W3C Feed Validation Service, for Atom and RSS
• WDG's Validation Tools from HTMLHelp.com
  • HTML Markup Validation Service
  • CSS Validation Service
  • XHTML Validation Service, valdate your entire website in one batch
  • XML transaction validation tool, checks XML content against contextual rules. Conforms to OASIS CAM standard.
• AJAX-based HTML Markup Validator
• Validator (description)

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