T-LAB review
A free Windows text-analysis tool with broad corpus methods and dictionary-based sentiment.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
T-LAB is a Windows desktop application for researchers and professional analysts working with text collections. Its freeware license makes it relevant to people who want corpus analysis without a time-limited trial or paid tier. It accepts document and tabular formats such as TXT, DOCX, PDF, CSV, XLSX, JSON, and XML, then supports segmentation into sentences, chunks, paragraphs, or short texts. Automatic lemmatization and stemming are available for documented languages, while texts in many languages can be analyzed.
The range of methods is a central strength. T-LAB offers co-occurrence, word association, sequence and network analysis, thematic analysis using bisecting k-means and topic modeling, document clustering, dictionary-based classification, and comparisons across corpus subsets. Interactive tables and charts can be exported. Sentiment analysis is dictionary-based, so researchers need to supply an appropriate dictionary; it is not an automatic, ready-made sentiment feature. This makes the product a better fit for analysts prepared to work with corpus methods and dictionaries than for teams seeking turnkey sentiment or entity extraction.
T-LAB is freeware, not open source, and the full software is available without a time limit. Its desktop-only, Windows-only availability narrows platform fit, and no integrations are listed. Support channels include community resources and documentation. The product is described as suitable for solo, small, and mid-market users, with GDPR listed as a compliance attribute. Researchers seeking a free desktop environment for varied text-analysis methods may find the scope appropriate; those who require a cloud service, integrations, or cross-platform access should look elsewhere.
T-LAB pros and cons
- Where it wins
- Imports common document and tabular formats, including PDF, DOCX, CSV, and JSON
- Supports topic modeling, clustering, co-occurrence, and comparative analysis
- Exports interactive tables and charts; freeware has no time limit
- Where it doesn't
- Runs on Windows only
- Sentiment analysis depends on a suitable user-provided dictionary
- No integrations are listed
T-LAB fact sheet, pricing and score →
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