Free, open-source web application for collaborative text annotation, automatic annotation, and quantitative text analysis with visualization tools
CATMA (Computer-Assisted Text Markup and Analysis) is a free, open-source web application designed for collaborative text annotation, analysis, and visualization. Developed at the Hamburg University's Centre for the Study of Manuscript Cultures, CATMA allows researchers to upload texts, define annotation tagsets and schemas, manually annotate texts or automatically pre-annotate them, analyze annotations quantitatively, and visualize the results.
Some key features of CATMA include:
With its emphasis on collaboration, custom annotation schemas, both manual and automated annotation, quantitative analysis, and data visualization, CATMA provides a powerful platform for researchers working with textual analysis across disciplines like linguistics, literature, history, political science, and more.