AntConc

Free corpus analysis tool for word frequency, keywords, collocations and concordance searches.

Details

AntConc is a widely used corpus analysis tool for word frequency counts, keyword analysis, collocation analysis, concordance searches and observing textual patterns. It suits linguistics, foreign language teaching, corpus research and text material analysis.

Use cases: corpus analysis, word frequency analysis, keyword analysis, collocation analysis, text search

Note: AntConc is free software, but it should not simply be labelled open source.