If you build a rating website, you definitely need a rating plugin installed on your site. If you decide to build your own rating system, feel free to see the following free jquery rating plugin available for your site and they are completely free.
Below is the list of the best and free jquery rating plugin.
1. JQuery Raty Plugin
jQuery Raty is a simple and easy to use star rating plugin. You will be able to use your own image with half rating option as well.
2. JQuery Half Star Rating Plugin
This is another option that is considered to be looked at. It can be used as rating plugin system.
3. JQuery JRating Plugin
JRating Plugin is really unique and if you target for more specific score, this will be your number one choice. Other rating can only handle half rating. But this one can do even further. Really worthed to check it out.