ChemRxiv is now live on Cambridge University Press’ Open Engage platform

As of Thursday, June 17, 2021, ChemRxiv, the premier preprint server for the chemical sciences, is now hosted through the Cambridge Open Engage platform. We are excited about the new, improved experience for ChemRxiv authors and readers, designed to complement the high-quality content, policies, and features that ChemRxiv has always offered.

Answers to some common questions are found below. Our team is always available at, or on Twitter @ChemRxiv, if you have any questions.

Why has ChemRxiv moved to a new platform?

On the new ChemRxiv site, which remains at, authors posting preprints benefit from an improved experience while still having access to all key previous features, such as links to the final version of record, direct transfer to a growing list of journals, and usage metrics for posted preprints. There has also been enhancements to ChemRxiv’s publishing platform, including an improved author dashboard where you can view the status of your content uploads, easily upload new versions of your preprints, and see your preprint stats at a glance. Readers also benefit from updated browsing and searching interfaces for finding relevant content, and the website features expanded policies and information.

The team at Cambridge Open Engage is focused on improving the way preprints are shared, making them a great partner for ChemRxiv and the chemistry preprint community. Their site and systems are designed specifically with preprints in mind, meaning that authors, readers, and ChemRxiv staff can apply industry best practices with ease. The Cambridge Open Engage team is also constantly innovating and evaluating new features that will be applicable to ChemRxiv.

When was the new ChemRxiv site relaunched?

The new site was relaunched on June 17, 2021.

FAQs for ChemRxiv readers

1. Will I need to do anything differently to access ChemRxiv content?

No! The site remains freely accessible to all readers, and it will continue to be hosted at the same URL ( While the URL structure for previously posted preprint content will change slightly, all content will be found on the new site, and redirects will be put in place to ensure that visitors can access all preprints even with older links or bookmarks.
2. Will usage metrics change on the new platform?

We will carry over all relevant usage metrics from the existing website during the transition. On the new platform, metrics will update once daily, but you will still have access to views and downloads, plus an Altmetric Attention Score.
3. Will an open API be available?

Yes. The new site will feature an open API at launch, which we consider a priority for supporting open science. While highly similar to the current offering, there will likely be some small changes. As the API is finalized, documentation will be added here and announced to the community. If you regularly use the API and have questions about these upcoming changes, please contact
4. Will ChemRxiv still be indexed in other databases, such as CrossRef, Scopus, ProQuest, Google Scholar, and EuropePMC?

Yes. We are in contact with all third parties who index ChemRxiv content so we can ensure a seamless transition to the new platform.

FAQs for ChemRxiv authors

1. How will I log in to the new ChemRxiv site?

The new platform uses ORCID, the unique identifier for researchers, for its login process. More information about ORCID can be found on the ORCID website. All submitting authors will need to have a valid ORCID in order to log in and submit preprints for consideration. If you do not currently have an ORCID, you can sign up for one on the ORCID website. Registering is free and only takes a few moments.
2. What will happen to my existing ChemRxiv preprints?

All of your currently posted preprints will be moved to the new site and available to you when you log in. We will match your prior preprints using the ORCID listed when they were originally submitted, and those preprints will be available on your dashboard when you log in with your ORCID. Once the new site is launched, if you notice any content that’s not correctly associated with your account, please contact
3. Can I still submit my preprint directly to a journal?

Yes. ChemRxiv’s Direct Journal Transfer program will remain a feature on the new platform. In order to submit to a journal, visit your author dashboard and then find the paper you wish to submit to a journal. Note, only papers that have been approved and are live on ChemRxiv will be available for direct journal transfer. Once you’ve found your paper, click the three buttons under the “Action” column and find the “Submit to Journal” option on the drop down. From there, locate the journal you wish to submit to, and then follow the steps to submit.
4. Will there be a delay if I submit a preprint around the transition to the new site?

To facilitate a complete transfer of content to the new site, we will be unable to process new preprint submissions on June 16, the day prior to launch. We encourage you to submit any new preprints as soon as possible, and no later than June 14th, so they can be completed before the transition. 

On June 17, the new site will be immediately open for new submissions. We may experience slightly longer processing times at launch depending on volume, but we do not anticipate any major delays. If you have any questions about your preprint’s status, please contact

ChemRxiv Partners

ChemRxiv will continue to be co-owned and co-managed by the following organizations:


If your question wasn’t answered here, please contact We will be happy to assist you.

This page was last updated on 06.17.2021.