Colibri Core is an open source software tool designed to provide an efficient way to analyze and process language data. Developed by Maarten van Gompel, it focuses on the extraction of linguistic patterns and constructions, such as n-grams and skipgrams from large text corpora. Colibri Core is particularly useful for tasks like pattern mining, corpus analysis, and computational linguistics research, offering functionalities that help in the examination of the basic building blocks of text.The software supports a variety of applications including frequency analysis, co-occurrence analysis, and the development of language models. Its capabilities make it suitable for both academic researchers in linguistics and professionals in data-driven fields such as natural language processing and text analytics.