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  Version
1.5 2.0 3.6
Windows
0.861 Download HTML Validator for Windows X X X
Linux 32 bits
0.861
Download HTML Validator for Linux 32bits X X X
Linux 64 bits 0.861 Download HTML Validator for Linux 64bits X X X
Mac OsX Intel 0.861 Download HTML Validator for Mac OsX Intel X X X
Mac OSX PPC 0.861 Download HTML Validator for Mac OsX PPC X X X
FreeBSD 5.1+ 0.839 Download HTML Validator for FreeBSD 5.1+ X X
FreeBSD 6+ 0.839 Download HTML Validator for FreeBSD 6+ X X
FreeBSD 7 0.861 Download HTML Validator for FreeBSD 7 X X X
OpenBSD 32 bits 0.861 Download HTML Validator for OpenBSD 32 bits X X X
OpenBSD 64 bits 0.861 Download HTML Validator for OpenBSD 64 bits X X X
Other platforms 0.7x See here


Source code (2009-04-17)
0.861 Download the source code



The extension XPI is now 2.0 Mb big ... The SGML parser is quite complex :-) But seems to work really well. The validation for the biggest pages I saw are below the 1/100 sec for both algorithms.

PREVIOUS VERSION

  Version
1.5 2.0 3.0
Windows
0.855 Download HTML Validator for Windows X X X
Linux 32 bits
0.854
Download HTML Validator for Linux 32bits X X X
Linux 64 bits 0.852 Download HTML Validator for Linux 64bits X X X
Mac OsX Intel 0.852 Download HTML Validator for Mac OsX Intel X X X
Mac OSX PPC 0.852 Download HTML Validator for Mac OsX PPC X X X
FreeBSD 5.1+ 0.839 Download HTML Validator for FreeBSD 5.1+ X X
FreeBSD 6+ 0.839 Download HTML Validator for FreeBSD 6+ X X
FreeBSD 7 0.852 Download HTML Validator for FreeBSD 7 X X X
OpenBSD 32 bits 0.852 Download HTML Validator for OpenBSD 32 bits X X X
OpenBSD 64 bits 0.852 Download HTML Validator for OpenBSD 64 bits X X X
Other platforms 0.7x See here


Source code (2009-04-17)
0.855 Download the source code



NEW FEATURES

The new version adds the following new features:
  • validation with a different algorithm, a SGML parser (OpenSP). It is the same algorithm program as the one running on validator.w3.org. The validation is done based on the DTD definition of HTML. The screenshots below let you compare the result of the next version of the extension and the real validator of W3c. They are just the same.
  • The help is written in a Wiki web side called Htmlpedia and synchronized at bundle time.  If you are interested to improve the help, please do, in the next version it will be bundle with the extension !
  • validation of  HTML pages after Javascript or Ajax execution
  • the warning/errors pane is divided by columns that can be sorted by line/colum, message type, and so on
  • line numbers next to the lines of code
  • the number of errors is shown at the top and not at the bottom anymore
  • a new XHTML help (thanks to Ansgar)
  • if your page contains no error, there are a new logos of this extension that you can add to your site.
    No HTML Tidy Error :  Validated by HTML Validator (based on Tidy) or  Validated by HTML Validator (based on Tidy)     
    No HTML Tidy and no SGML error:  Validated by HTML Validator (based on Tidy) or  Validated by HTML Validator (based on Tidy)
  • Also, due that the SGML algorithm is identical to algorithm used in validator.w3.org. Normally, if you have 0 errors in SGML, if you check you page with validator.w3.org, it will give you
    No SGML Error :  Validated by HTML Validator (based on SGML) or  Validated by HTML Validator (based on SGML)  
  • ...
For additional questions, there is a forum : http://www.htmlpedia.org/phpBB/

The SGML Parser is compiled and bundled in a XPI file just like Tidy in older version. You should have just to install the XPI to get it working. Then go to the options and choose algorithm "SGML Parser". Happy validation !!!

SCREENSHOTS

Screenshot 1: Html Validator 

Notice the Validation after JavaScript execution. And the different icons depending of the algorithm used.

browser

Screenshot 2: Html Validator (validation by Tidy)

tidy

Screenshot 3: Html Validator (validation by SGML Parser)

sp

Screenshot 4/5: The same page validated by validator.w3.org (compare the errors with screenshot 3)

w3 1


w3 2