PREreview

Code for Science and Society
United States of America

About

Launched: 2017
Record Updated: Oct 03, 2025
Discovery system
Peer review system
PREreview.org is a platform for crowdsourcing open preprint reviews. PREreview designs and develops open source infrastructure to enable constructive feedback to preprints at a point in time in which it is needed, offers peer review training and mentorship, and partners with like-minded organizations to create opportunities for collaborative review experiences that defeat cultural and geographical barriers.

Mission

PREreview's mission is to bring more equity and transparency to scholarly peer review by supporting and empowering communities of researchers, particularly those at early stages of their career (ECRs) and historically excluded, to review preprints in a process that is rewarding to them.

Key Achievements

PREreview.org is the only open-source, journal- and preprint server-independent preprint review platform that offers opportunities for any researcher with an ORCID iD to contribute feedback to preprints. The reviews receive a digital object identifier (DOI) via DataCite, a CC BY 4.0 licence, and are archived on Zenodo. PREreviewers choosing to sign their reviews with their public name can opt-in to have those reviews automatically added to their ORCID profiles.

PREreview Clubs empower groups of people with similar affiliations, interests, or locations to collaborate in giving timely feedback to preprints.

Nearly 3000 individuals are registered PREreviewers, 20% of whom have published at least one preprint review, contributing to a total of 1000 reviews published so far.

Technical Attributes

Technical Attribute Statements

Programming Languages

  • typescript

Technology Readiness Level

  • Actual system proven in operational environment

Code Licenses Used

  • MIT License

Content Licensing

  • Creative commons licenses
Other:
https://creativecommons.org/licenses/by/4.0/

Standards

Metadata

  • DataCite metadata schema
  • JATS-XML
  • JSON
  • JSON-LD
  • REST

Persistent Identifier

  • ORCiD
  • Research Organization Registry

Integrations

  • arXiv
  • bioRxiv
  • Creative Commons Licenses
  • Crossref
  • DataCite
  • Europe PMC
  • medrXiv
  • Open Preprint Systems (OPS)
  • OpenAlex
  • OSF (Open Science Framework)
  • PubPub
  • Zenodo
Other:
Airtable, Azure, CiviCRM, Cloudinary, COAR Notify Protocol, Fathom, Ghost, Google Drive, OAuth, Sciety, Slack

Community Engagement

User Contribution Pathways

  • Contribute funds
  • Contribute to documentation
  • Contribute to education or training
  • Contribute to peer reviews
  • Contribute to user research or user testing
  • Contribute to working groups or interest groups

Community Engagement Activities

  • Blogs
  • Community calls
  • Conference participation
  • Development sprints
  • Interest, working, user, or advisory groups
  • Mailing lists and discussion forums (including Slack)
  • Social media
  • Staff roles with responsibility for community engagement
  • User research
  • Volunteer or ambassador network
  • Webinars and training

Engagement with Values Frameworks

  • COAR Next Generation Repositories Principles
  • Joint Statement of Principles of the Coalition for Diversity and Inclusion in Scholarly Communication (C4DISC)
  • San Francisco Declaration on Research Assessment (DORA)

More About Community Engagement

User Contribution Pathways:

PREreview runs an annual Champions Program, more information here: https://prereview.org/trainings#prereview-champions-program

Community Engagement Activities:

Trainings. Our Open Reviewers trainings address the lack of peer-review training by engaging reviewers in discussions on process challenges, personal and structural biases, and self-reflection. Participants gain strategies and tools for providing clear, constructive feedback to manuscripts.

Champions. The Champions Program equips researchers to promote open preprint review globally. Each year, selected participants engage in activities to increase research community involvement in open peer review, supported by resources and training.

Live Reviews. These topic-centered, interactive preprint review calls are open to anyone bringing a collaborative approach. Facilitated by the PREreview team, Live Reviews model respectful, constructive peer-review practices. Outputs are published on PREreview.org, enhancing manuscripts and supporting journal review workflows.

Policies & Governance

Governance Summary

PREreview is governed by an Advisory Committee, and is a fiscally sponsored project of Code for Science & Society, a US-based 501(c)3

Policies

Privacy Policy

Implemented

Web Accessibility Statement

In Progress

Governance Structure & Processes

Implemented

Transparent Pricing and Cost Expectations

Implemented

Policy Statements

Board Structure

  • Advisory board or steering committee

Community Governance

  • Ad hoc

Additional Information

Organizational History

Founded in 2017 by three early-career women scientists, PREreview began as a volunteer-led open science project with shared leadership. Our first funding, a $2,500 Mozilla mini-grant, supported in-person preprint review events in 2018. In 2019, Daniela Saderi became the full-time director as a Mozilla Fellow, and PREreview joined Code for Science and Society as a fiscally sponsored project to uphold our non-profit values. Initial funding from Sloan and Mozilla enabled PREreview.org’s prototype, with Wellcome Trust support further enhancing it.

From 2020-2022, we partnered with eLife to expand peer-review training, fostering open preprint evaluation. A 2022 Chan-Zuckerberg Initiative grant facilitated the third iteration of PREreview.org, introducing accessible tools for community engagement. In 2024, a 3-year Gates Foundation grant further supports our mission to advance open, equitable peer-review practices.

Organizational Structure

Business or Ownership Model

Fiscal sponsorship (non-profit)

Full-time Staff

1-5

Funding

Primary Funding Source

  • Contributions
  • Program service revenue

Financial Reporting Level

  • Both

Funding Needs

Investing in PREreview supports a community dedicated to transforming scholarly evaluation through openness, equity, and collaboration. Founded in 2017 by three early-career women scientists, PREreview operated with grants and volunteer leadership for its first three years, with only one full-time director. With support from the Chan-Zuckerberg Initiative and, more recently, the Bill & Melinda Gates Foundation, we’ve expanded to include four more full-time team members.

As our team grows, so does our impact. We seek support from philanthropies, institutions, and governments to scale our mission globally. Over the next 2-3 years, we aim to further develop around three pillars: 1) inclusive, accessible training in open peer review, 2) our interoperable review authoring platform, and 3) “clubs”—decentralized, community-driven hubs for peer review of preprints and open research objects.