How it Works

What is a “Preprint”?

A preprint is any scholarly article that has not yet been peer-reviewed and published in an academic journal. In most cases, it is thought of as a draft or working paper. A preprint can be updated and resubmitted at any time.

Preprints is a multidisciplinary preprint platform that makes scientific manuscripts from all fields of research immediately available. It is a free (not-for-profit) open access service supported by the open access publisher MDPI, based in Basel, Switzerland.

How do preprints get online?

Authors can submit a preprint by creating an account and going to the submission page. Check the information for authors page before submitting. New submissions go through an internal check, usually completed in less than 24 hours, after which they immediately appear online.

Improved versions of preprints can be uploaded any time after announcement by using the link in the author dashboard. All versions are assigned an individual digital object identifier (DOI) and can be independently cited.

Features of Preprints
Preprints Covers All Research Fields

We want to ensure that all academics are able to rapidly disseminate their work and establish research precedence, which is why Preprints is a multidisciplinary platform. You can see the subject categories here.

Preprints Makes Research Discoverable, Sharable and Citable

Open science calls for transparent and public dissemination of scientific content. This means that a preprint service requires optimized search, possibilities to share content in scientific communities, reliable archiving, and the possibility to immediately cite content.

  • The advanced search function of Preprints allows for a search by keywords in the article or in the comments, author name, author affiliation, subject areas, disciplines, or date posted.
  • Readers can share preprints on social media and bookmark them on external services such as CiteULike, Mendeley, BibSonomy, Reddit, or Delicious.
  • All posted preprints are immediately citable by their assigned digital object identifier (DOI). Preprints encourages authors to post updates of their working manuscript as research progresses. From the first draft to the final document, every version is independently citable with its unique DOI.

Comment on Any Article

Readers can comment on and rate any preprint. Comments from signed-in users are posted immediately. Comments must follow the standards of professional discourse and should focus on the scientific content of the article. Insulting or offensive language, personal attacks and off-topic remarks will not be permitted. Preprints reserves the right to remove comments without notice. Readers who post comments are obliged to declare any competing interests, financial or otherwise.

Commenters can receive credit via Publons by clicking a check-box when submitting a comment. Logged in users can also link their Publons account to Preprints.

Open Access Copyright

All preprints are posted with an open access Creative Commons CC BY license and authors grant Preprints a license to distribute the article.

Citation Via Digital Object Identifiers

Each preprint has a unique digital object identifier issued by Crossref. This makes them instantly citable and provides a permanent link to the article, even if the URL on our platform changes.

Submission via API

Preprints offers an API to allow submission directly from another website, such as a journal submission page. You can read the API documentation at If you are interested in an integration please contact or apply directly for access at


In addition to being searchable from any page on our website, our preprints appear in the following places:


For inquiries regarding submission, announced papers, legal issues, the advisory board, or any inquiry regarding the general operation of Preprints, please contact