Wmatrix corpus analysis and comparison tool

Wmatrix is a software tool for corpus analysis and comparison. It provides a web interface to natural language processing tools such as the English USAS and CLAWS corpus annotation tools, and standard corpus linguistic methodologies such as frequency lists and concordances. It also extends the keywords method to key grammatical categories and key semantic domains.

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Wmatrix5 first went live for the CL2021 conference on 12th July 2021.

Wmatrix4 was mainly suitable for English texts and also introduced a Spanish tag wizard beta version.
Wmatrix4 ran in Lancaster University's cloud infrastructure with a new faster disk and used the more secure https connection method.
Wmatrix4 first went live for the IWODA2018 conference and was retired on 1st March 2023.

Existing folders in Wmatrix3 were transferred to Wmatrix4 on 16th December 2018.
Wmatrix3 was suitable for English texts only and was retired at 8am GMT/UTC on 20th December 2018.