HTML code analyzer

Question

Is there any HTML code analyzing tool that suggests tips to improve the HTML code?

Answer 1

http://validator.w3.org/

The most important tool, to ensure validity.

• http://net.tutsplus.com/tutorials/html-css-techniques/30-html-best-practices-for-beginners/
• http://developer.yahoo.com/performance/rules.html

Articles such as this for tips on writing semantic, clean html and avoid common html-diseases like divitus, classitus, optimizing your code, and other best practices.

• http://htmldog.com/
• http://www.opera.com/company/education/curriculum/

Guides such as these which are more in-depth and cover accessibility, development in general, css, JS/DOM ( since DOM is what is used for HTML ).

And the mother of all:

• http://www.w3.org/TR/html401/

Though it's not very newbie friendly and I'd recommend guides like htmldog instead, but this would be the go-to source for looking up directly from the source.

Answer 2

tidy

Answer 3

For standards? This one is good: http://validator.w3.org/

Or do you want perf or readability or ...?

Answer 4

Sitesifter is decent (although it identifies issues and links to documentation, it isn't an automated fixup tool — but most problems can't be automatically fixed anyway)