HTML check

Isn't it embarrassing if one of the more picky WWW browsers labels your document with an ugly red "Bad HTML" tag? Spare yourself the shame, have your documents validated!

This HTML validation service runs htmlchek version 4.1 validity checker on your HTML document. It can point out both syntax and semantic errors, as well as a couple of warnings about syntacticaly correct but discouraged constructs.

Other validation forms

Doctor HTML - highly recomended. It performs all kinds of checks and tests.
HaLSoft HTML Validation Service
Weblint validation form

Validation software

htmlchek version 4.1 -- runs under awk or perl on mostly any platform
html-check (SGML syntax checker)
Weblint
list of HTML validation tools, and another list
Arena (W3C's HTML3 browser) can point out HTML syntax errors

Related documents

HTML Writers Guild's HTML Resources (references, validation, style, test pages, ...)
HTML and WWW Style Guides, Principles of Good HTML Design
w3.org documents
HaLSoft HTML Services, Products and Documentation
Why validate ?

Service provided by:

J. Stefan Institute