For 20 years, the Directory of Open Access Journals (DOAJ) has been at the forefront of open access, helping libraries—and others worldwide—connect with freely available scholarly resources. DOAJ’s mission is to increase the visibility, accessibility, reputation, usage, and impact of quality, peer-reviewed, open access scholarly research journals globally, regardless of discipline, geography, or language. All of DOAJ’s data and metadata are freely available.

DOAJ’s data is used by almost all major discovery services and search engines, both those built for libraries and those used by the general public. This ensures that such services and search engines are easily able to include Open Access journals across the widest possible spectrum of disciplines, geographies, languages, and economies. DOAJ obtains at least 80% of its operating budget from the academic community of libraries and research organizations. By reaching out to a very broad set of libraries for relatively low levels of financial support, DOAJ can keep the cost per library for this vital part of the Open Access infrastructure as low as possible.