Gold: the journal publishes everything openly, usually for a fee. Green: the author deposits a copy in a repository. Hybrid: a subscription journal that sells open access per article. Diamond: open with no fee to authors or readers. The open-access flag on journal pages here comes from OpenAlex and DOAJ.
Journal data: OpenAlex (CC0) and DOAJ (CC0). Feed URLs belong to their publishers; arXiv feeds per arXiv terms of use. Nothing from the feeds is stored on this site: the latest articles load live from the publisher. OpenAlex · DOAJ · arXiv
