The Open Access Diamond Journals Study


From June 2020 to February 2021, a consortium of 10 organisations undertook a large-scale study on open access journals across the world that are free for readers and authors, usually referred to as “OA diamond journals”. This study was commissioned by cOAlition S in order to gain a better understanding of the OA diamond landscape.


The study undertook a statistical analysis of several bibliographic databases, surveyed 1,619 journals, collected 7,019 free text submissions and other data from 94 questions, and organised three focus groups with 11 journals and 10 interviews with hosting platforms. It collected 163 references in the academic literature, and inventoried 1,048 journals not listed in DOAJ.

The results of the study are available in the following outputs:

Upcoming Presentations and Events

12-03-2021P. MounierJournée d’étude Couperin “Publication scientifique : stratégies des grands éditeurs et consentement à payer”OnlineLink
09-04-2021All authorsThe OA Diamond Journals Study: Q&A webinarOnlineLink
10-06-2021V. Proudman2021 Research & Scholarly Publishing ForumOnlineLink
23/25-06-2021V. ProudmanLIBER Conference 2021OnlineLink
Table of OADJS Presentations


To perform the study, OPERAS coordinated a consortium of 10 participating organizations:


Associate partners: