Note that because all of these tools are online, they may not always be working when you happen to try them!
There are also many more tools that you can download to use at home or on your own computer somewhere else.

Some background: Overview and introduction to POS-tagging

Tools for automatic POS-tagging ...

• Language Technology Group (Edinburg): tagger
• CLAWS: 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.
• Xerox Europe tagger for English (other languages)
• A "memory-based tagger"
• Tagger for German (Uni Zürich)

Tools for automatic parsing ...

• ENGCG (Lingsoft); ENGCG, the Constraint Grammar Parser of English, performs morphosyntactic analysis (tagging) of English text.
• Xerox English Parser
• English parser: <www.teemapoint.com>
• Link grammar parser for English

XSLT processing ...

• Running the XALAN XSLT processor from the FB10 CIP lab