Total Validator is a free one-stop all-in-one validator comprising a HTML Validator, an accessibility validator, a spelling validator, a Broken links validator, and the ability to take screenshots with different browsers to see what your web pages really look like. Currently Total Validator provides the following main features:
A parser that validates the basic construction of your pages
True HTML validation against the W3C Markup Specifications or ISO/IEC definition using the published DTDs (2.0, 3.2, 4.0, 4.01, ISO/IEC, XHTML 1.0 and 1.1)
An accessibility validator that validates against the W3C WAI Accessibility Guidelines and US Section 508 Standard
A broken links validator that checks each page for broken links
A spelling validator that spell checks the content of your pages (English, French, Italian, Spanish, German)
Snapshots (screenshots) of your pages in different browsers, on different platforms, at different resolutions
A desktop tool so you can validate pages before you publish, and pages behind firewalls
A Firefox extension for fast, One Click validation
