TXM is free, open-source Unicode, XML & TEI compatible text/corpus analysis environment and graphical client based on CQP and R. It is available for Microsoft Windows, Linux, Mac OS X and as a J2EE web portal.
For more information, see
- TXM on TEIWiki
- Textometrie Project web site
- TXM user community wiki (in French) (includes FAQ)
- TXM developers wiki (in English) on Sourceforge
Projects and Text corpora using TXM
- Base de Français Médiéval
- Queste del saint Graal online digital edition
Digital Medievalist 
[…] May 2012, the BFM is accessible via a new web portal powered by the TXM corpus search and analysis platform. Depending on their copyright status, texts can be searched with or without context size limitation […]