Friend's in this post I am going to share the top 8 tools from W3C to find the HTML errors of any websites, it will very helpful for blogger, WordPress and all the platforms.


Top 8 HTML/CSS error finder tools for blogger and WordPress from W3C official


The Top tools  to find out HTML errors  are here 



UNICORN TOOL



 Unified validator. HTML, CSS, Links & Mobile .The official tool by W3C, testing can be done by past URL or uploading HTML.



RSS feed Validator


Validator for syndicated feeds. (RSS and Atom feeds)



RDF Validator


Checks and visualizes RDF documents with the official W3C tool.


INTERNATIONALIZATION Checker


Checks level of internationalization - friendliness by insert URL of website and results will appear in seconds.

Link Checker



Checks your web pages for broken links like the official Google webmaster tool


CSS validator



Checks your Cascading Style Sheets (CSS) which are used to style web.



Web-platform-tests



Test and help the interoperability of the Web with this awesome TOOL by W3C


Nu HTML checker



Check HTML documents errors with W3C official tool