'bridging cultures & improving education through better dictionaries & terminology'
Watch Recording Now! Live AI-Augmented Lexicography in TLex
Sample generative-AI humor dictionary »
[New 3 Oct 2023] New lexicography article: "Generative AI and Lexicography: The Current State of the Art Using ChatGPT" [gmds]

The new 'Next-Generation' Version 2023 TLex, tlTerm, tlCorpus, tlDatabase, tlReader now with OpenAI GPT/ChatGPT integration! Augment and super-charge your lexicography, terminology and other work with new AI-augmented language work integration features!
All new licenses purchased now will get the new OpenAI integration functionality.
macOS & Windows downloads » | What's New | Watch tlTerm easily load millions of terms »
Want help setting up an AI-assisted workflow in TLex or tlTerm? Contact us for a quote ...

Products and Services

Watch this video presentation to see the OpenAI AI integration (GPT/ChatGPT) integration in TLex (and tlTerm etc.) »

“TLex helps me a lot in my work ... thanks for this amazing software.”
“I get more impressed every minute ... TLex is a great and valuable product”
“For the first time I’m working in TLex day in and day out, and I can’t tell you how impressed I am with the software that you’ve developed. It’s streets ahead of anything I’ve dealt with”


TLex lexicography software, tlTerm terminology software, tlCorpus concordance software, tlDatabase, tlReader and electronic dictionaries
• Supports Windows & Mac
• Web, Mobile, Print, Digital & API publishing
• Custom software/website development - tell us what you need
• Professional commercial support
• Training
• Founded with aim to help bridge cultures and improve education, through better dictionaries and terminology
• Proven 15+ year track record


TLex and tlTerm are used by Oxford University Press (SA), Oxford Fajar, Pearson-Longman, Enciclopedia Catalana, Woordeboek van die Afrikaanse Taal, the Malaysian Institute of Language and Literature, South African National Lexicography Units, Unisa, Stellenbosch University, AWS (Afrikaanse Woordelys en Spelreëls), Academia Argentina de Letras, and many more organizations and individuals.


With automated sense and homonym numbering, Ruler Tool, TLex smart-references that help ensure cross-reference integrity (even when target sense/homonym numbers change), and more. Real-time preview of related material. Catch reversibility gaps with specialized bilingual editing tools and checks.


Automates many tedious tasks for you, e.g. smart punctuation, smart cross-references, DTD-driven styles, semiautomated reversal and more. Makes it easy to find untransslated words, terms or examples, or do error checks. Instantly grab examples from corpus, or link to the Internet

• Discounts for personal/academic or endangered-language use.
STANDARDS-BASED: Unicode, XML, XLIFF, TMX, TBX, XSLT, and more. No lock-in.
SCALABLE AND HIGHLY CUSTOMIZABLE: Handles from small to extremely large >4GB databases (e.g. Enciclopedia Catalana with TEI DTD), from simple to complex DTDs. 'Multiple dictionaries from one database'. Customizable metalanguage.

-tlTerm Terminology Software

Professional terminology software, supporting multi-user or standalone termbases. Easily publish your terminology to the Web, hardcopy, or in electronic form. Give translators instant access to terminology in Microsoft Word or Excel.

🆕 Search/View XLIFF, TMX Translation Memories, TBX and more in the new Multi-Document Smart-Search.

◆ The 64-bit tlTerm allows you to load and work with massive terminology databases, such as the IATE EU downloable TBX terminology - watch this video of tlTerm easily loading millions of terms to see how it works!

SUPPORTS ALL LANGUAGES - yes, it supports your language*

◆ Get instant activation if you purchase now.
◆ 30-day refund if not satisfied
◆ Free upgrades to future versions

Video: "tlTerm in Under 6 Minutes" Mini-Demo:

Tutorial Video: Getting Started with tlTerm:

corpustlCorpus Concordance (Corpus Query) Software

Easily create a searchable collection of language data/texts and begin linguistically 'mining' it.
◆ Supports all languages
◆ Integrated Web crawler
◆ Supports text, HTML, Microsoft Word, PDF, MOBI, ePUB, CHM and more formats
Free trial available
◆ Instant activation on purchase
◆ 30-day refund if not satisfied
◆ Free upgrades to future versions

databasetlDatabase Generic Data Editing Software

User-friendly generic XML-based data editor; allows any kind of database to be created.
The power of the TLex core editor, applied to any type of data.
Features include integrated scripting language, multi-user support, customizable DTD (Document Type Definition), Styles system, smart-styles, templates and more.

◆ Free Trial available
◆ Instant activation upon purchase
◆ 30-day refund if not satisfied
◆ Free upgrades to future versions


Free, distributable viewer for TLex dictionaries, tlTerm termbases, and tlDatabase files.

Website Development and Custom Software Development

We have extensive experience developing advanced PHP/MySQL and HTML5/CSS/JavaScript-based websites, such as the Longman HAT website, the Stellenbosch Language Center multilingual terminology website, and many more. We are also experienced application developers (C++, C#, etc., for all major platforms, e.g. Windows, Mac OS X, Linux). Contact us to discuss your requirements.

Data Conversion

We are highly experienced at converting data (dictionary/terminology/other) from other formats such as Microsoft Word into XML/TLex/tlTerm formats.


Oxford Bilingual School Dictionary: IsiZulu and English Oxford Bilingual School Dictionary: Northern Sotho and English / Pukuntšu ya Polelopedi ya Sekolo: Sesotho sa Leboa le Seisimane. E gatišitšwe ke Oxford Our own dictionary projects include:

• Award-winning Zulu - English Dictionary (Oxford University Press SA)

Electronic Zulu - English Dictionary (Based On IsiZulu.net)

Award-winning Northern Sotho - English Dictionary (Oxford University Press SA)

Swahili - English Dictionary

We also publish third-party dictionaries »
All our dictionaries are corpus-driven and created using the TLex Dictionary Writing System.
Thai - Svensk Ordbok (Thai - Swedish Dictionary) Thai - Svensk Ordbok
Thai - Swedish Dictionary (by Fredrik Almstedt)

We are a Level 4 BBBEE Rated Supplier.

tlTranslatetlTranslate Translation Memory Software

Computer-Assisted Translation. Sign up as beta tester and get a free copy when it becomes available (not yet available).


Compliments From Users

"I've been using TLex for several months now and am very happy with it."

"Tshwanelex has become an indispensable working tool for me."

"I have been playing around with it for a while and it's not often you find such elegant software, that has everything you need at the tip of your fingers. Amazing work!"

"I have been using TshwaneLex for slightly more than a month now and I want to recommend this excellent software to others ... I have found that it does just about everything I have wanted dictionary-making software to do. Many apparent limitations have disappeared as I have become more familiar with it. It's also worth mentioning that working with TshwaneLex has helped clarify a number of analytic issues that I had earlier ignored while working with less structured software.

That this is expensive software is completely wrong as well. It cost me slightly less than $200 US and ... for one like myself whose intellectual life focuses on dictionary-making, this is a very small price to pay for a thoroughly useful piece of software. It is also a very small price pro-rated over the months and years that I expect to be using it."

"The Tshwanelex DPS is an invaluable tool for enabling the National Lexicography Units to produce dictionaries more easily"

"We are indeed happy with Tshwanelex. It has been a great tool that has helped us all along the project. We are also happy with your customer service. You have always answered our questions and tried to solve our troubles without any delay."

"The software you've created is extremely helpful!"

"Thank you ... without TshwaneLex, this project would never come to an end"

"Good job. I like your services."

"I have been able to visit the Online Swahili Dictionary ... and found it high standard"