Just as the Google Campaign URL Builder, this tool allows you to easily add UTM campaign parameters to URLs. The use of UTM parameters is a prerequisite to measure custom campaigns in Google Analytics (any edition).
If you are looking for a more professional approach to URL building you might want to take a look at features and benefits of the ed.Campaign.
Enter the website URL and campaign information
Fill out all fields marked with an asterisk (*), and the campaign URL will be directly generated for you.
More information and examples for each UTM parameter
The following table gives a detailed explanation and example of each of the UTM campaign parameters: