Cloud folder sharing allows granting access to specific folders within your cloud storage to users with separate accounts. Unlike sharing files individually or within the same account, this involves linking folders to external users' distinct identities. Typically, the folder owner sends an invitation via email or generates a shareable link, granting recipients viewing or editing rights directly within their own cloud storage account interface once they accept.

This is extensively used in business settings; a project team might collaborate on a shared Google Drive or Microsoft OneDrive folder, with members accessing documents simultaneously from their separate work accounts across different companies. Individuals also share folders, like providing Dropbox access to family photos for grandparents who have their own personal accounts.

This capability significantly improves collaborative workflows across organizational boundaries. However, managing permissions consistently across many accounts can become complex. Security risks arise if folders are shared too broadly, potentially exposing sensitive data to unintended recipients. Platform-specific rules and limitations regarding file sizes, link expiration, and account types may apply. Future developments focus on streamlining cross-platform sharing and enhancing security audits.