sitelike.org is a free and easy to use similar websites search tool to find similar websites, alternatives or related to a given site.
It helps you to find similar sites based on keyword overlap and shared audience.
"Similar sites like" first finds the best and top keywords for all websites and rank them.

Similar sites like collects and combines details about websites from many sources..
We use our internal algorithm with analysing the website contents and also several web sources to determine the topics of websites which are used to find similar websites that have the closest matching set of topics.
We also analyze multiple aspects of websites including popularity, website worth, ranks.
We then combine them and compute the overall similarity scores.