Nu Markup Validation Service
Ready to validate
Validator Input
Encoding
As set by the server/page
UTF-8 (Global)
UTF-16 (Global)
Windows-1250 (Central European)
Windows-1251 (Cyrillic)
Windows-1252 (Western)
Windows-1253 (Greek)
Windows-1254 (Turkish)
Windows-1255 (Hebrew)
Windows-1256 (Arabic)
Windows-1257 (Baltic)
Windows-1258 (Vietnamese)
ISO-8859-1 (Western)
ISO-8859-2 (Central European)
ISO-8859-3 (South European)
ISO-8859-4 (Baltic)
ISO-8859-5 (Cyrillic)
ISO-8859-6 (Arabic)
ISO-8859-7 (Greek)
ISO-8859-8 (Hebrew)
ISO-8859-9 (Turkish)
ISO-8859-13 (Baltic)
ISO-8859-15 (Western)
KOI8-R (Russian)
TIS-620 (Thai)
GBK (Chinese, simplified)
GB18030 (Chinese, simplified)
Big5 (Chinese, traditional)
Big5-HKSCS (Chinese, traditional)
Shift_JIS (Japanese)
ISO-2022-JP (Japanese)
EUC-JP (Japanese)
ISO-2022-KR (Korean)
EUC-KR (Korean)
Schemas
Preset
None
HTML5 + SVG 1.1 + MathML 3.0 + RDFa Lite 1.1 + Microdata
HTML5 + SVG 1.1 + MathML 3.0 + RDFa 1.1 + Microdata
HTML5 + SVG 1.1 + MathML 3.0
HTML 4.01 Strict (not parsed as SGML) + IRI / XHTML 1.0 Strict + IRI
HTML 4.01 Transitional (not parsed as SGML) + IRI / XHTML 1.0 Transitional + IRI
HTML 4.01 Frameset (not parsed as SGML) + IRI / XHTML 1.0 Frameset + IRI
XHTML5 + SVG 1.1 + MathML 3.0 + RDFa Lite 1.1 + Microdata
XHTML5 + SVG 1.1 + MathML 3.0 + RDFa 1.1 + Microdata
XHTML5 + SVG 1.1 + MathML 3.0
XHTML 1.0 Strict + IRI + Ruby + SVG 1.1 + MathML 3.0
SVG 1.1 + IRI + XHTML5 + MathML 3.0
Parser
Automatically from Content-Type
XML; don’t load external entities
XML; load external entities
HTML; flavor from doctype
HTML5
HTML 4.01 Strict
HTML 4.01 Transitional
Be lax about content-type
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Source code
