The Directory of Open Access Preprints Repositories (DOAPR) provides a list of preprint repositories that are available to the research community. It helps researchers and other interested parties to find the most appropriate platform for them.

DOAPR provides a list of repositories that collect and provide access to preprints. The directory enables users to browse through existing repositories by discipline, location, functionalities and other criteria related to open science.

The directory is jointly managed by Centre pour la Communication Scientifique Directe (CCSD) and Confederation of Open Access Repositories (COAR). The directory is hosted by COAR and CCSD curates and maintains the data.

To suggest a new repository, or provide feedback on a repository already included in this directory, please use the feedback page to link with a Github form or send an email to [email protected]

The "Last update" information is available in "Repositories" / "General" on the last line of the "General" page. This date is the date of validation by the manager of the repository.

Open the "Repositories" drop-down menu in the top blue banner (2nd item), select "General" and choose the desired repository in the "Name" column. The repository page will then open with all the features related to that repository.

Open the "Repositories" drop-down menu in the top blue banner (2nd item), then select “Function” or “Support for open science” in this menu. The "Function" page allows you to compare all the repositories according to 15 functions ranging from formatting to peer-review functions. The "Support for open science" page compares repositories according to 21 criteria relevant to the practice of open science.

Open the "Repositories" drop-down menu in the top blue banner (2nd item), then select "Support for open science" in this menu.The "Support for open science" page compares repositories according to 21 criteria relevant to the practice of open science.

The "Integrated services" section groups together third-party services offering a particular function (e.g. indexing) which can be used by the author. The specific repositories connecting with such service are listed in the last column of the page. The list can be accessed by clicking on the name of the service.

The 15 functions listed in the repository data correspond to 15 different functionalities offered by either the preprint repository itself or by an external service to which the preprint is connected.

Definitions of "Functions" and "Services"

1. Bibliographic References Management: These services/functions support the standardisation of references and footnotes.
2. Commenting / Annotation: These services/functions enable you to comment on reviewed and validated pre-prints and articles.
3. Communications: These services/functions offer social networking functionality for researchers allowing the exchange of information and documents.
4. Data / Code: These services/functions allow authors to deposit data sets and coode enabling authors to link from the preprint record to external content.
5. Endorsement: These services/functions endorse the scientific quality of a preprint after a formal review process.
6. Publication: These services/functions make it possible to monitor or facilitate the entire publication process.
7. Indexing / Search: These services/functions index the preprints contained in the repository, increasing their discoverability.
8. Metrics: These services/functions monitor the impact of preprints through various measures such as number of downloads, citations, or social media likes.
9. Peer review: These services/functions provide a formal review of the content of a preprint by fellow researchers.
10. Plagiarism: These services/functions review preprints and articles to ensure there has been no plagiarism.
11. Preservation: These services/functions offer long term preservation of content in the repository.
12. Research ID: These services/functions offer unambiguous researcher identification services.
13. Revision-follow-up: These services/functions enables authors to upload new versions of the preprint in the repository
14. Text-mining: These services/functions enable text mining of preprints for research purposes.
15. Writing / Formatting: These services/functions allow the formatting of manuscripts conforming in particular the instructions to the authors and the formats required by preprint servers.