It is really a time consuming task to create web friendly names for files. If you are looking for a freeware to create web friendly file names then you can try “Make Names Web-Friendly“. Make Names Web-Friendly is a freeware application for MAC OS X which will help you to convert your files names to web friendly names.
Make Names Web-Friendly can convert the names of the selected files or folders to web friendly nature by changing the spaces to underscores or dashes, removing accents, changing all the letters to lower case, removing the regional characters etc. You can also use it as an Find-and-Replace tool.