SlimerJS : A scriptable browser for Web developers
JSHint : A JavaScript Code Quality Tool. JSHint is a tool that helps to detect errors and potential problems in your JavaScript code.
SonarQube : SonarQube is an open source platform for continuous inspection of code quality.
jscs is a code style checker. jscs can check cases, which are not implemented in jshint, but it does not duplicate jshint functionality, so you should use jscs and jshint together.