Do we need Selenium Server?
Testing and automation of web applications is a necessity for the high quality software development. Selenium Webdriver is a popular tool for web application testing. Selenium is a server which can automate the web browsers to do test cases execution. Selemium Server is required to install on the system to use the selenium web driver in the IDE or Command Line Interface (CLI).
There are some differences between using a local installation of selenium server and using a remote selenium server, so you have to decide what works best for your project.