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HAL - Université Paris-Saclay

HAL: what is it?

The HAL open archive is a repository of scientific documents, whether published or not, produced in the scientific research and higher education context. Created in 2001 following the model of arXiv, HAL offers a range of services to the scientific community.


As part of the Ministry's roadmap for research infrastructures, HAL is the multidisciplinary open archive chosen by the entire French scientific and university community for the dissemination of knowledge.

It is both a single repository and an app, a shared platform for institutional archives, thematic open archives and electronic theses.

HAL Université Paris-Saclay is a portal of HAL, opened in 2021. It lists all scientific productions that appear under the signature of Université Paris-Saclay.

The aim of the portal is to:

  • Disseminate the knowledge produced by our laboratories and platforms
  • Make our scientific publications visible and accessible at a national and international level
  • Raise awareness of open science practices among research communities
  • Increase full-text deposits in HAL

This portal does not replace the existing portals of the faculties, institutions and partner organisations of Université Paris-Saclay.

Just one deposit of your publications in a portal or the generic HAL collection is enough. 

HAL-Université-Paris-Saclay is a complementary entry that lists and makes visible the University’s whole scientific production.

What are the 7 good reasons to deposit your publications in HAL?

  • Articles deposited in HAL are visible in search engines and portals such as Google and Google Scholar, PubMed and PubMed Central;
  • It is also possible to transfer your HAL deposits to other open archives such as ArXiv and RePec.
  • Scientific studies such as JMLA (2020) or Scientometrics (2010) show a clear correlation between citation rates and depositing in open archives or open access;
  • An article visible in an open archive is cited twice as much !
  • Export of publication lists: thanks to the tool ExtrHAL;
  • Statistics and reports with the tool VizuHAL;
  • Dynamic web pages: page dynamically delivered according to the deposits in HAL. You can insert a link to this page or integrate the page itself into your personal page or on the website of the laboratory or your team;
  • Alerts: to be informed of your colleagues’ publications or about a particular research theme;
  • Personal web pages with your HAL CV.
  • Scientific age of the deposit;
  • Copyright retention;
  • Embargo with deferred distribution if necessary can be set at the time of deposit;
  • Option to add a Creative Commons license.
  • File and format stability;
  • Long-lasting unique URLs
  • Your research is largely publicly funded; the writing and proofreading of articles is done free of charge, so it is natural that the results you publish are freely available to researchers in your field;
  • It is shared property that must be available to everyone;
  • As the cost of subscriptions increases exponentially, university budgets can no longer keep up with the inflation imposed by the big publishers each year.

Université Paris-Saclay supports you

Do you have a question, a remark on HAL and/or the university portal or on the help app for the “BiblioHAL” depository?

Librarians will answer your questions, sent to this address: