Validators and Lints

Demoroniser

fourmilab.ch

Perl script which corrects incompatible HTML generated by Microsoft applications.

149 visits Jan 3, 2025 Details

HTML PowerTools

tali.com

Windows. Includes validator, image scanner, meta tag manager, find and replace tool, tag pair fixer, and an HTML to text converter. Commercial software; 30-day demo.

474 visits Mar 29, 2024 Details

HTML Tidy

3.org

Unix, Windows, MacOS, and others. Validator fixes errors in HTML and XHTML. Converts HTML to XHTML. Free Software.

386 visits Feb 24, 2026 Details

LinkScan/QuickCheck

elsop.com

Unix and Windows. Lint and link checker. Commercial software; free trial. Also online checking.

76 visits Jul 9, 2024 Details

SP Instructions

ktmatu.com

Windows. Instructions for the Do-it-yourself Offline HTML Validator using SP.

365 visits Apr 26, 2025 Details

SWAN: SubWeb Analyzer

in.tue.nl

Unix. Generates statistics and finds inconistencies in a subweb (web site).

336 visits Apr 18, 2026 Details

WebLight

illumit.com

Linux, Mac OS X, and Windows. Finds broken links, non-standard HTML, and links between URIs on web sites. Commercial software; free for small sites.

121 visits Apr 20, 2025 Details