Not all web development tools have the option to add Google Analytics tracking code to the generated HTML files or sometimes you may just prefer to code by hand without having to worry about analytics.
With this tool, you can select files via the UI and then process them by adding a code snippet in front of the </head> tag. If a file already contains Google tracking code, it will not be processed. The tool also allows you to create backup file before modifying the original html file – just to be safe.