CamlJS Console for Chrome From Andrei Markeev
CamlJS Console for SharePoint is a free, open-source development console for creating SharePoint CAML queries, with a live preview against real lists and libraries.
You will be able to use it in your everyday work with SharePoint. It is a useful tool for developers and system administrators, who need to quickly create and test queries in a convenient way.
With CamlJS Console, you can create a CAML query in the following ways:
By using the CAML editor window, which is a form in which you can enter the query as a string, and then run it against a selected list.