# Default Username And Password For New Instance Let's say you've set up a fresh new instance of MySQL. Perhaps in a docker container with a MySQL image. When you first connect to the instance, you'll be prompted for a username and password. What is the username and password for a MySQL instance you've just created? There are defaults. The default username is `root` and the default password is left blank. So, your connection URL will look something like this: ``` mysql://root@localhost:3306 ``` You can use that on the CLI or plug it in to the connection details panel of your favorite SQL client. [source](https://dev.mysql.com/doc/refman/8.0/en/default-privileges.html)