1. Go to Sites -> WordPress -> Advanced Settings -> FTP Access
2. Click on Generate Credentials. Your credentials will be available in a few minutes.
3. The Host URL, Port number, Username, and Password can be used to log in to a client program and access the WordPress files. Make sure to keep these credentials safe. The UserName and Password are unique for each user and you can even reset these credentials.
There are many free and premium ones to choose from, we recommend one of the following: