Optimizely - A/B testing you'll actually use.
CpConverter - Code Page Converter - Convert HTML/Text files to different encoding formats e.g.
VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
Batch Encoding Converter - Convert files between more than 100 text encodings and binary formats!
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
UTFCast - UTFCast Professional is an efficient Unicode converter for windows. It can convert massive amounts of text to UTF-8, UTF-16 and UTF-32 at a very high speed. It supports over 30 codepages and has the ability to convert extra-large size files.