Preprints.org is a multidisciplinary platform providing preprint service that is dedicated to making early versions of research outputs permanently available and citable. We post original research articles and comprehensive reviews, and papers can be updated by authors as long as the updated content has not been published online. Content on Preprints.org is not peer-reviewed and can receive feedback from readers.

We believe in the fast dissemination of research. Our simple, quick process ensures that others can read your work as soon as possible. Preprints.org has the following features:

• Multidisciplinary

  We cover all research disciplines, and you can see the research categories here.

• Open access

  All preprints are posted with a Creative Commons CC BY 4.0 license, ensuring that authors retain copyright and receive credit for their work while allowing anyone to read and use their work.

• Citation via Crossref DOI

  Each preprint will be registered with a unique digital object identifier issued by Crossref. This makes them instantly citable and provides a permanent link to the preprint, even if the URL on our platform changes. New versions of preprints receive a different DOI.

• Comment on any preprint

  Authors can receive public or private feedback on their work from peers.

• Simple submission process

  Submitting a preprint only requires basic information, and our team of editors will help with the process and post your preprint as soon as possible.

• Read

  There are a number of ways to make sure you find the preprints most relevant to you. You can:

  1.   Search our website;

  2.  Sign up for alerts (requires an MDPI account);

  3.  Find our preprints through an indexing database.

  By using an open-access license, our preprints are free for anyone to download and read.

• Cite

  Posted preprints are registered with Crossref to receive a digital object identifier (DOI). This means that they are citable. Each posted preprint has a “Cite” part on the abstract page to introduce the details.

  If a preprint is published in a journal afterward, we will link the journal version to the abstract page and PDF, making sure that readers have access to the latest version. Authors are also encouraged to link a peer-reviewed journal version actively under the “my preprints” tab in their profiles.

Comment and Discuss

Readers can comment on any preprint, and these comments are highly valued by authors and can help to improve papers before journal publication. You can use the comments to give a general opinion of the research presented, make suggestions for extension or improvement, or to highlight certain parts for other readers. Readers who would like their comments to be counted as a review can receive credit from Publons by linking their accounts.

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

Preprints.org seeks to promote diversity among all those using the site. In particular, we encourage those from any background to contribute as author, commentator, or to screen manuscripts. We will not tolerate prejudice based on gender, sexual orientation, race, nationality, religion, or similar traits that lead to unfair discrimination. If you feel you have suffered prejudice or abuse, please contact any Preprints.org member of staff. We will take such complaints seriously and take action where necessary and possible.