Today the Rapid Development of Information Technology and Adoption of Its Several Applications Has Created the Revolution In Business and Various Fields Significantly. the Growing Interest In Business Using Electronics and Technology Has Brought Vital Improvement In Data Mining Field Also, Since It’S an Important Part of Data Accessibility. Data Mining and It’S Applications Can Be Viewed As One of the Rising and Promising Technological Developments That Provide Efficient Means to Access Various Types of Data and Information Available Worldwide. Not Only This, These Applications Also Aids In Decision Making. a Better Understanding of These Applications Helps In Asking Choice Among All Available Application and Tools. the Paper Gives the Complete and Theoretical Analysis of Six Open Source Data Mining Tools. the Study Describes the Technical Specification, Features, and Interest For Each Selected Tool Along With Its Applications. By Employing the Study the Choice and Selection of Tools Can Be Made Easy.