Skip to main content

CLARIN Technology

CLARIN is based on a distributed network of organisations (or centres) that host language resources and related services. These centres each have their own expertise. Within a single country, they are often grouped into a national consortium.

Each consortium appoints one centre as a representative in CLARIN's technical body, the Centre Committee ('Standing Committee on CLARIN Technical Centres'). This is where most of the technical work happens: Writing specifications, planning software development and organising the quality control for each of the centre candidates. The independent Center Assessment Committee analyses each of the candidate centres and provides feedback with regards to compliancy to the technical and organisational requirements.


CLARIN's Technical Pillars

  • Federated Identity: Letting users log in to protected data and services with their own institutional login and password
  • Persistent Identifiers: Enabling sustainable citations of electronic resources
  • Repositories: Digital archives where language resources can be stored, accessed and shared
  • Component Metadata and concept definitions: To ensure semantic interoperability when describing language resources
  • Content Search: Offering a search engine for a wide range of language resources
  • Web service chaining: giving users the possibility to freely combine language processing services.

CLARIN for Programmers


For CLARIN core software, see the CLARIN GitHub Repository. A list of other CLARIN-related software that is hosted at GitHub is available here.

Development Guidelines

If you intend to contribute code or to start a CLARIN software project, please make sure to read the Guidelines for Software Development (requires trac access). More related information can be found at the EURISE network website and on the CLARIN for Programmers page.

Open Source Code, APIs, Widgets and Notebooks

Programmers who are interested in using and contributing to CLARIN's infrastructure can find more information about a range of topics, such as Open Source Code, APIs, Widgets and Notebooks, on our CLARIN for Programmers page. 

Task forces

Task forces are active and informal groups populated by people (often developers) from CLARIN centres and centre candidates. It is where the 'real work' in terms of protocol specification, technical documentation writing and software development takes place. Find more information about joining a task force


Get in Touch



Learn More

If you want to learn more about the technology behind CLARIN, there are several sources of information: