TAALED: Tool for the Automatic analysis of LExical Diversity (Beta Version)
 TAALED is an analysis tool designed to calculate a wide variety of lexical diversity indices. Homographs are disambiguated using part of speech tags, and indices are calculated using lemma forms. Indices can also be calculated using all lemmas, content lemmas, or function lemmas. Also available is diagnostic output which allows the user to see how TAALED processed each word. 

TAALED is easy to use. It takes plain text files as input (it will process all plain text files in a particular folder) and produces a comma separated values (.csv) spreadsheet that is easily read by any spreadsheet software.

Starting with TAALED 1.3.1, no additional programs are needed for the program to function properly.
If you use TAALED in your work, please cite:

Kyle, K., Crossley, S. A., & Jarvis, S. (in press). Assessing the validity of lexical diversity using direct judgements. Language Assessment Quarterly.

For an analysis of the stability of various indices across texts of different lengths, also see:

Zenker, F., Kyle, K. (2021). Investigating minimum text lengths for lexical diversity indices. Assessing Writing 47. https://doi.org/10.1016/j.asw.2020.100505
TAALED 1.4.1
TAALED 1.4.1 (Mac OSX)
TAALED 1.4.1 (64-bit Windows 10)
TAALED 1.4.1 (Python 3, cross-platform)
TAALED Index Description Spreadsheet (2020-11-25)

TAALED 1.3.1
TAALED 1.3.1 (Mac OSX)
TAALED 1.3.1 (64-bit Windows 7,8,10)
TAALED 1.3.1 (Python 3)

Previous Versions:
TAALED 1.2.4 Beta - Note that you must install the Java Development Kit for TAALED 1.2.4 to work properly.
TAALED 1.2.4 Beta (Mac OSX)
TAALED 1.2.4 Beta (64-bit Windows 7,8,10)
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