The table below provides a list of cloud-based Software as a Service (SaaS) applications, and provides guidance on which tools are recommended in a variety of categories:
| Available for individual use | Signed University Contract | Approved for the storage & transmission of confidential/protected data | Supported by WashU IT | |
| Chat/Messaging | ||||
| Microsoft Teams |   | | | |
| Slack | | |||
| File Storage and Collaboration | ||||
| Box | | | | |
| OneDrive | | | | |
| DropBox | | |||
| Google Drive | | |||
| iCloud | | |||
| Office 365 | | | | |
| Gmail | | |||
| Yahoo | | |||
| Hotmail | | |||
| Backup | ||||
| Crash Plan | | | | |
| Carbonite | | |||
| Backblaze | |