Heliyon is a monthly peer-reviewed open-access mega journal covering research in science, medicine and engineering.

Unlike most of its competitors, the journal will consider for publication works reporting negative/null results, incremental advances, and replication studies,[1] thus filling the market niche, which became vacant after the discontinuation of the Journal of Negative Results in Biomedicine in 2017.

According to the publisher's website: "the [journal's] name is all about shining light on important research.

This root word gave us inspiration, as we want this journal to illuminate knowledge across a broad spectrum.

The journal is abstracted and indexed in: As of October 2024[update], the journal's indexation in the Science Citation Index Expanded is "on hold" and pending re-evaluation, with Web of Science citing the concerns on "the quality of the content published in this journal" as a reason for the suspension.