KeywordDensityReport.com VS SiteKeywordDensity.com

WordCounter.net - Count words, sentences, paragraphs etc.

Heytools - JavaScript tools, AJAX tools and some fully server side tools.

KeywordDensityTool.net - Keyword Density Tool

Word Count Tools - The must-have free word counter that provides an extensive report about the word count, character count, keyword density, readability & many other useful stats.

KeywordDensityAnalyzer.com - Website Keyword Density Analyzer Tool

TextPipe - Search and Replace, Find and Replace, Web Sites, Database Extracts, XML, CSV, Tab, mainframe COBOL data and more