The corpus-based analysis of legal discursive features is key for research on legal translation, as well as other related fields, such as comparative legal linguistics, legal lexicography and legal linguistics. This chapter addresses methodological considerations relevant to the selection of tools to analyse legal discourses for legal translation research purposes. The results of a comparative analysis of currently available fourth-generation concordancers – CPQweb, Sketch Engine, and ParaVoz – are presented with a view to verifying their suitability for a specific research project, according to the project's context of use. These tools are tested in accordance with the relevant guidelines and norms designed for software evaluation.