In several web servers (most commonly Apache) .htaccess is the default name of directory-level configuration files. It provides the ability to customize configuration for requests to the particular directory. However, creating a .htaccess files can be tedious.

Now you can create .htaccess files easily online with .htaccess Editor. Simply fill in the form provided, you can then copy and paste the texts from the textarea box to your .htaccess files quickly. Please feel free to suggest your other favourite .htaccess online generators as well~

Source: http://www.htaccesseditor.com/en.shtml