About CLST

Founded in January 2003, the Centre for Language and Speech Technology (CLST) stands as a proud institution dedicated to advancing the field of language and speech technology. Our mission is clear: to contribute to the development and progress of this exciting domain.

We actively engage in application development and provide expert consultancy services. Our passion lies in projects that bridge the gap between research and real-world applications, and we take great pride in our ability to make a tangible impact. Whenever possible, we share our groundbreaking projects in esteemed research journals, ensuring that our contributions reach a wide audience and inspire further innovation.

Collaborating with national and international research programs, as well as commercial partners, we embrace diverse opportunities to bring our expertise to the forefront. The Centre for Language and Speech Technology is here to make its mark, pushing boundaries and shaping the future of language and speech technology.



As a CLARIN C Centre, we actively participate in the CLARIN (Common Language Resources and Technology Infrastructure) infrastructure. CLARIN is a European research infrastructure that aims to make language resources and technology more easily accessible for research and development in the humanities and social sciences. As a CLARIN C Centre we play a critical role in collecting, curating, and providing access to language resources and tools and their metadata. These resources encompass a wide range of data, including textual corpora, lexicons, annotations, audio recordings, and more. Our mission is facilitating access to language resources and technology for researchers in the humanities and social sciences. These resources empower researchers to delve deep into linguistic analysis, explore language variation, study language acquisition, and much more.

To enhance accessibility and interoperability, we support a diverse array of formats. Below we showcase the supported file formats for various types of language resources.

Data Curation Service

The Data Curation Service (DCS) started in 2011 as a project of CLARIN-NL and will be continued in CLARIAH until 2024. The DCS is concerned with making collections of research data in the linguistic field accessible and is housed at the Centre for Language and Speech Technology (CLST) at Radboud University. The DCS aims to bridge the gap between researchers with interesting research material and the CLARIN-NL / CLARIAH data centres. We work together with researchers and experts. Our data curation specializes in (but is not limited to) datasets and corpora for atypical communication. CLST is also a separate knowledge centre (ACE) within CLARIN for this purpose.


CLST is a unit within the Faculty of Arts of the Radboud University Nijmegen and embedded in the Centre for Language Studies (CLS). It has a director and a board. Final responsibility is with the Dean of the Faculty.