Meld is a free, open source tool for comparing files, directories and version-controlled projects developed in Python by Kai Willadsen. It features two- and three-way comparison of files and directories, supports numerous version control systems, and is particularly useful for reviewing changes to code. This tool can be downloaded or run without an install via the command line by copying the source code directly from the repository.

Weft QDA is a free and open-source tool for the analysis of textual data. You may import documents from plain text or PDF, apply character-level coding, category and document memos, retrieve coded text, apply simple coding statistics, apply free-text search, and export to HTML and CSV formats.

Developed at Indiana University, Event Structure Analysis is made up of three components: Ethno, prerequisite analysis, and composition analysis. Ethno is an on-line Java program that helps you analyze sequential events; prerequisite analysis produces a diagram showing how events are connected; composition analysis involves coding agent, action, object, and other characteristics of each event.

TAMS Analyzer is a program that works with TAMS to let you assign ethnographic codes to passages of a text just by selecting the relevant text and double clicking the name of the code on a list. It then allows you to extract, analyze, and save coded information.

CAT is an environment for group coding and analyzing data sets, including computing inter-rater reliability. Users can create a free account, or download the ASP.NET tool suite to run independently.