- Doctor HTML : a webpage analysis tool which retrieves an HTML page and reports on any problems that it finds.
- HTML Tidy : freeware; Cleans up HTML, XHTML, reports errors and problems
- HTML Tidy : free online service; Cleans up HTML, XHTML, reports errors and problems
- HTML2Table : With HTML2Table you can convert HTML tables without all the HTML tags into comma (or anything else) delimited tables
- Table2HTML : With Table2HTML you can easily convert a tab or comma delimited table (table in a Word document for example) to a HTML table
- Character Cleaner v2 : web service that adds line-breaks/xhtml breaks/encoding.






