Agreements with publishers

Leiden researchers are entitled to take part in deals regarding Open Access that have been arranged with a substantial number of publishers.

Journal Browser: your guide to Open Access

The Journal Browser shows all possibilities per individual journal to publish Open Access, including those for which an agreement on Open Access with discounts up to 100% applies.

You can use the filter on the left hand side, if you only wish to see journals for which you do not have to pay an APC.

The Journal Browser is regularly updated, but also the result of work in progress. No rights may be derived from information on the website.

How to enroll?

To ensure participation:

• Use your Leiden affliation: correspond with your Leiden University / LUMC email address
• When asked, make sure you indicate that you DO want to publish Open Access
• When in doubt about workflow, charges or anything else, ask for help at openaccess@library.leidenuniv.nl

'Notify me service' to manage the end of year cap on Open Access deals

The agreements with some publishers have a limit ('cap') on the number of open access articles published per year. At this moment the following publishers have a cap as part of their agreement: American Chemical Society (ACS); Cambridge University Press (CUP); Emerald; Lippincott, Williams & Wilkins (LWW); Oxford University Press (OUP); Springer; Taylor & Francis (T&F); and Thieme. You can stay informed about the status of these caps by signing up for the ‘notify-me service’. 

We expect the following caps to be reached in 2026: 

We do not expect the cap for Cambridge University Press or ACS to be reached in 2026. 

Overview of publishers with an Open Access (discount) agreement

American Chemical Society (ACS)
This is a 'capped' agreement. Information on the agreement with ACS at www.openaccess.nl

Association for Computing Machinery (ACM)
Information on the agreement with ACM at www.openaccess.nl 

American Institute of Physics Publishing (AIPP)
You can find the information on the agreement with AIP Publishing in this short summary.

Benjamins
You can find the information on this agreement in our short summary on how to take part or on the Benjamins website.

Brill
Information on the agreement with Brill at www.openaccess.nl

Cambridge University Press
This is a 'capped' agreement; we do not expect the cap for 2026 will be reached. Information on the agreement with Cambridge University Press at www.openaccess.nl

Cogitatio Press
You can find the information on this agreement in our short summary on how to take part or on the Cogitatio Press website

The Company of Biologists
Information on the agreement with The Company of Biologists at www.openaccess.nl

De Gruyter
Information on the agreement with De Gruyter at www.openaccess.nl

Elsevier
Information on the agreement with Elsevier at www.openaccess.nl

Emerald
This is a 'capped' agreement; we expect the cap for 2026 to be reached at the end of September. Information on the agreement with Emerald op openaccess.nl

IOP Publishing
Information on the agreement with IOP Publishing at www.openaccess.nl

IOS Press
Information on the agreement with IOS Press at www.openaccess.nl

Karger
Information on the agreement with Karger at www.openaccess.nl
  
Lippincott Williams & Wilkins (LWW)
This is a 'capped' agreement; we expect the cap for 2026 to be reached in early October. Information on the agreement with LWW at www.openaccess.nl

Oxford University Press
This is a 'capped' agreement; we expect the cap for 2026 for hybrid journals to be reached in early September, and the cap for full-OA journals early November . Information on the agreement with Oxford University Press at www.openaccess.nl

Royal Society of Chemistry
As of 1 January 2025 Leiden University participates in this agreement again. Information on the agreement with the Royal Society of Chemistry at www.openaccess.nl

Sage
Information on the agreement with Sage at www.openaccess.nl

Springer Nature
This is a 'capped' agreement; we expect the cap for 2026 to be reached by the end of September. Information on the agreement with Springer at www.openaccess.nl

Taylor & Francis
This is a 'capped' agreement; we expect the cap for 2026 to be reached mid-November. Information on the agreement with Taylor&Francis at www.openaccess.nl

Thieme
Information on the agreement with Thieme at www.openaccess.nl

Wiley
Information on the agreement with Wiley at www.openaccess.nl

For any further questions, please contact us at openaccess@library.leidenuniv.nl

Supporting open access initiatives

Leiden University Libraries also support other initiatives which advance open access worldwide. Some of these initiatives are focused on the infrastructures behind the open access ecosystem, others are focused on making open access publishing possible via other routes than a Read & Publish deal. Below a list of the open access initiatives and infrastructures currently supported by Leiden University Libraries:

• Directory of Open Access Books / OAPEN - DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers and OAPEN is a global digital library for hosting and disseminating scholarly OA books
• Directory of Open Access Journals – Listing of journals which publish all articles in open access
• DOI – Supporting the Digitial Object Identifier (DOI) system to generate DOIs
• IIIF - The International Image Interoperability Framework (IIIF) is a set of open standards for delivering high-quality, attributed digital objects online at scale which Leiden University Libraries use for their digital objects where possible.
• OpenAire – OpenAire connects the global research community through Open Science infrastructure and services. Including the Netherlands Research Portal.
• ORCID – The Open Researcher and Contributor ID (ORCID) is a free, unique, persistent identifier for individuals to use as they engage in research, scholarship, and innovation activities. Leiden University recommends all researchers to use their ORCID in their publications.
• Leiden Journal Browser – Lists all journals which are covered by agreements with publishers and Leiden University.

• arXiv.org - arXiv is a free distribution service and an open-access archive (preprint server) for scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.
• MIT Press Direct to Open – Supporting the publishing in diamond open access (without costs for the author) of digital monographs from the MIT Press.
• Moesson – journal for the Indo community in the Netherlands
• Open Library of Humanities – OLH publishes 39 diamond open access journals in the humanities.
• PhilPapers - PhilPapers is a comprehensive index and bibliography of philosophy maintained by the community of philosophers which also hosts the largest open access archive (preprint server) in philosophy.
• PsyArXiv – PsyArXiv is a free archive of preprints, working manuscripts, and postprints (preprint server) in the psychological sciences.
• SciPost - SciPost is an online scientific publication portal which provides free, open, global and perpetual access to science via its journals in the fields of physics, chemistry, astronomy, political science and social and behavior change.
• SCOAP3 - SCOAP3 funds the Open Access publication of high-energy physics articles in its supported journals.
• Sidestone Press Library Program – academic publisher in archaeology and anthropology