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Linguistic Tree Constructor

Home - What is LTC?

  • LTC is a tool for drawing linguistic syntax trees, running on Windows(R), Linux, and Mac OS X (10.4, 10.5, 10.6, and 10.7) platforms.
  • It is available for free under an Open Source license (the GNU GPL).
  • It is good for quickly making syntax trees for large amounts of text, in a point-and-click fashion.
  • Key words: syntax, syntax trees, annotation, linguistics, software.

More information

See the "About LTC" page for more information.

There are also some screenshots and some documentation.

Latest news:

October 31, 2011
News-item Released version 3.1.0, which is a feature enhancement and bugfix release. Upgrading is recommended for all LTC users. This version has assorted usability enhancements..
September 18, 2010
News-item Released version 3.0.4, which is a bugfix release. Upgrading is recommended for all LTC users. The program also has assorted usability enhancements..
May 5, 2009
News-item Released version 3.0.3, which is a bugfix release. Upgrading is recommended for all LTC users. The program also makes it easier for you to subscribe to the LTC mailinglists.
April 12, 2009
October 23, 2008
News-item Released version 3.0.2, which is a bugfix and speed improvement release. Upgrading is recommended for all LTC users.
October 11, 2008
News-item Released version 3.0.1, which is a bugfix release.
October 2, 2008
News-item Released version 3.0.0.
January 28, 2008
News-item Released version 2.8.1, which fixes a critical (but non-security-related) usability-bug.
January 27, 2008
News-item Released version 2.8.0, which brings horizontal trees, among other goodies.
August 20, 2007
News-item Released version 2.7.1, which brings speed-improvements and bugfixes (i.e., crash-fixes).
July 16, 2007
News-item Released version 2.7.0, which brings a working scroll-wheel, a new editing mode, and debianization!
July 11, 2007
News-item Released version 2.6.1, which fixes a few bugs in 2.6.0.
July 6, 2007
News-item Released version 2.6.0, which improves speed, and adds a side-panel for labels.
March 14, 2007
News-item Released version 2.5.0, which adds user-definable node-categories (such as Sentence, Paragraph, etc.).
November 12, 2006
News-item Released version 2.0.0, which improves the User Experience.
November 21, 2005
News-item Released version 1.2.0.preview15, which adds support for Linux and Mac OS X.
June 30, 2005
News-item Released version 1.1, of the Westcott-Hort edition of the Greek New Testament as an example.
March 19, 2005
News-item Released version 1.1.3, and a Greek New Testament as an example.
March 3, 2005
News-item Released version 1.1.0, with Unicode support.
February 18, 2005
News-item Launched website.
News-item Released version 1.0.3.