Storage Caps FAQs

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Add-ons and Project Structure

Q: How can I check the current storage usage on my projects?

A: The project or components storage total is displayed on the overview page on the upper right, near the public/private toggle.

Q: How will I know if I have exceeded the limit?

A: When your project/component is within 10% of the storage cap, an additional notification will be added which includes links to ideas and resources. You will also receive an email notification with this information.

This notification will update when your file uploads exceed the storage limit. You will receive a notification within OSF and via email.

Q: My project says I have exceeded the storage capacity, but I need to add more files. What do I do?

There are several options:

1) Enable storage add-ons to the project or component where you've reached the limit. Review our Add-Ons help guide for more guidance.

2) If you are working in a private project or component, consider making it public to automatically increase your OSF Storage capacity to 50 GB. Our help guide on privacy settings has more information.

3) If parts of the project could be made public, organize the project with components to manage access to contents. See an example here. Learn how to create a component by reviewing our Create Components help guide.

If you wish to discuss these options or additional needs, please contact

Q: I have a nested project structure with components. Is the limit for the entire structure?

A: Each project and component has its own storage limit, depending on the public or private status. Each is calculated independently. Storage totals are not cumulative across the project and components. For example, if you currently structure your project into sections using folders consider replicating part of this structure using components within the project/component.


Q: What features or storage rules are included with the OSF add-ons? How do I choose?

A: Please review our add-ons comparison chart. If you do not see your preferred personal or institutional storage provider, please contact to discuss options.

Q: Are there additional fees if I exceed the storage limit?

A: There are no additional fees associated with OSF Storage, though you will not be able to add additional files to a project or component that has exceeded its storage limit.

Institutional Resources

Q: All of my projects are affiliated with my institution. Are these projects affected?

A: Institutional affiliation for a project (enabled through single sign-on of OSF Institutions members) is a primary factor that will enable storage exceptions for users, though we do want to learn more about their data needs as well. Please write and our team will collect information about your project, affiliations, and storage options.

Q: The add-ons we use at my institution are not available. How can I follow your guides?

A: Determine if you have access to additional storage options, or request your institutions storage options be integrated with OSF add-ons by contacting

Q. I am leaving my institution and my add-on is tied to an institutional account. Will I still be able to see and modify my files through OSF?

A: OSF relies on an authentication or provider token process to verify access to each of your provider accounts. Once your permissions are revoked by the institution, OSF cannot continue to grant access to those resources. While preparing to change institutions, consider moving your files to a provider that you will allow you to retain access. Also reference any data management policies provided by your institution. If you have concerns or would like to discuss options, please contact

Registrations and Permissions

Q: If I move my files to an add-on, what happens to my OSF links to individual files?

A: Files moving to most providers will not change the file’s URL and all links and embeds will continue to function as expected.  For more information on file behavior within and between OSF add-ons, visit our Add-Ons help guides.

Q. Does registering a component with storage in an add-on mean the files are now stored/archived at COS?

A:  Yes, those files are archived with the registration on OSF Storage and are unrelated to your project storage total.

Q. If I have external storage, how do I know which privacy settings apply? Do I keep track of two sets of permissions/link access?

A: Privacy settings for each individual project or component are controlled separately, and content linked from external storage will inherit the public visibility of your project.  Consider adding components that can remain private if this content should not be accessed publicly.  Review our help guides to more about privacy settings and components. Contact to discuss other options.

Q: Will storage limits interrupt API syncing / workflows?

A: Attempting to add to a project or component past its storage limit will result in a “507 Insufficient Storage” status. Please contact to discuss options.

Q: If I make a donation to COS, can I request more storage in my projects? 

A: The best mechanisms to support OSF Storage for your and others’ projects for many years in the future is to have your institution become a member, help us identify and resource more storage integrations with OSF, and to write OSF into your next grant or project budget. Visit to learn how to include OSF in your next proposal.

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