The JOSS review process is open, public, and collaborative, mirroring the culture of open source—JOSS is itself an open-source project6. The papers are made openly accessible, authors publish at zero cost, and they retain the copyright of their papers. JOSS is sustainable by virtue of its community of volunteers, and taking advantage of an ecosystem of open platforms, such as GitHub and Zenodo, and the open-source tools that we have developed7. With these tools and our team of volunteer editors and reviewers, we are able to keep the operating costs of the journal very low (approximately $3/paper). We believe that JOSS can be sustainable for a long time with very modest amounts of funding. While JOSS specializes in software, the JOSS model and tools could also work for other contributions to science, such as open data resources, workflows and protocols, and open educational resources.