CAT (the Coding Analysis Toolkit) is a free service of the Qualitative Data Analysis Program (QDAP), and hosted by the University Center for Social and Urban Research, at the University of Pittsburgh, and QDAP-UMass, in the College of Social and Behavioral Sciences, at the University of Massachusetts Amherst. CAT was the 2008 winner of the “Best Research Software” award from the organized section on Information Technology & Politics in the American Political Science Association.

  • Abhi


    These tools look very interesting. Query dynamics provides a free api for topic categorization for keyword queries. This api has also been used to extract topics from tweets. Check their api at
    Does textifier provide tools for topic analysis is search queries and tweets?

    Will greatly appreciate your feedback on this.