Free CLAWS WWW trial service


CLAWS POS tagger | Obtaining a licence | Tagging service


Trial service

Our free trial service offers access to the latest version of the tagger, CLAWS4, which was used to POS tag c.100 million words of the British National Corpus. You can choose to have output in either the smaller C5 tagset or the larger C7 tagset.

Submitting text

If you would like to use our trial service, please complete the form below. From an academic site, you can enter up to 100,000 words of English running text. If you enter more, it will be cut off at the word limit. To run the full amount, you will need a fast internet connection. Input format guidelines are available. To tag the text you have entered click the button below the form.
Enter your email address (optional):

Select tagset: C5 C7

Select output style: Horizontal Vertical Pseudo-XML


This free service is not intended for extremely large numbers of repeated submissions from the same site. Our tagging service and CLAWS licences are available if you have hundreds of millions of text to tag. Please contact Paul Rayson (email: paul at comp.lancs.ac.uk), also use this address if you have technical problems.

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