Hindawi was a publisher of peer-reviewed, open access, scientific journals active in scientific, technical, and medical (STM) literature. It was founded in 1997 in Cairo, Egypt, and purchased in 2021 for $298 million by John Wiley & Sons, a large US-based publishing company.
By 2022, Hindawi was publishing over 250 journals, including 64 journals indexed within the Science Citation Index Expanded, and 1 journal indexed within the Social Sciences Citation Index,[3] with a total of 64 journals ranked with an impact factor. Since 2007, all of Hindawi's journals have been open access and published under a Creative Commons Attribution License (CC-BY).[4]
The quality of peer review at a number of Hindawi journals has been criticized. In 2010, Hindawi was classified as a possible predatory publisher by Jeffrey Beall, but was removed from the list following a successful appeal.[5] Over the next years, the number of articles in Hindawi journals grew exponentially, the majority being published in special issues.