Since 1998
Text Analysis International
We built VisualText, an IDE for building text analyzers, and NLP++, a programming language for writing them. Both were used for information extraction and natural language processing in business, government and universities.
Text Analysis International closed in 2018. VisualText and NLP++ are now free and open source, and development continues at visualtext.org. This site is kept as an archive.
New book
Rule-Based NLP with NLP++
A practical guide to rule-based text analysis with VisualText, written by the creators of NLP++, David de Hilster and Amnon Meyers. Published by BPB and available on Amazon.
Where things are today
VisualText.org
News, tutorials, free analyzers and the current releases of VisualText and NLP++.
NLP++ for VS Code
The current way to write and debug NLP++ analyzers, as a Visual Studio Code extension.
Source code on GitHub
The NLP++ engine, analyzers and tools, released as open source.
From the archive
About VisualText
What the original Windows IDE did, and what developers said about it.
Downloads
VisualText 2 Professional, the TAIParse English analyzer, white papers and more.
VisualText help
The complete original documentation, including NLP++ tutorials.
In-depth tour
A walk through VisualText using the corporate-events sample analyzer.
The classic site
Our original homepage, as it looked for most of two decades.