There are a variety of preprint servers available for different subjects; here is a list of some of the most popular. Check publisher policies for journals you are interested in publishing in before depositing a preprint in any of these.
Created in 1991, this is the oldest preprint server and covers the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.
A preprint server for materials in the fields of medical, clinical, and related health sciences.
A preprint server for materials in the life sciences.
- Europe PMC
An open science platform that enables access to a worldwide collection of life science publications and preprints from trusted sources around the globe
- OSF Preprints
A preprint server maintained by the Center for Open Science.
- Authorea Preprint Repository
The repository of Authorea, a collaborative platform to read, write, and publish research, maintained by Wiley.
- Cambridge Open Engage
A platform from Cambridge University Press that allows users to collaborate on research.
Image by SciELO. Licensed under CC BY 4.0.