Firebug - Web Development Evolved
- A Firefox extension which includes several Web development tools that can edit, debug, and monitor CSS, HTML, and JavaScript live in any Web page.
GFXIndex
- A small, configurable program that generates indices of pictures by creating thumbnails (mini versions of the pictures) and a set of HTML files. Latest release is 2.0, 2004-07-23.
HTML Tidy Project Page
- A tool for checking and cleaning up HTML source files. It is especially useful for finding and correcting errors in deeply nested HTML, or for making grotesque code legible once more. Latest stable release is 04aug00, 2001-05-28.
Mason HQ
- Perl-based web site development and delivery engine. Latest version is 1.39, 2008-01-30.
SCREEM
- An HTML/XML editing system for web site development. Latest stable release is 0.16.1, 2005-11-16.
The ht://Check Home - More Than a Link Checker
- This application is particularly suitable for checking broken links, anchors and web accessibility barriers, but retrieved data can also be used for Web structure mining. Last stable release is 1.2.3, 2004-06-01.
Vilistextum - HTML to ASCII converter
- A small, fast HTML-to-text converter; fault-tolerant and deals well with badly-formed or otherwise quirky HTML. Latest stable release is 2.6.9, 2006-10-22.
WPP - The Web Preprocessor
- A small perl5 script that allows preprocessing of HTML files. It's useful for giving an uniform layout to different HTML pages. Latest release is 2.13.1.33, 2003-06-8.
XHTML2 Working Group Home Page
- The W3C HTLM Working Group is charged with the task of creating the next HTML standard with the active participation of browser vendors, software developers, and content designers.