| Usersnap | 1 | 1 |
| Userlocal | 1 | 1 |
| Userlike | 1 | 1 |
| Userfrosting | 1 | 1 |
| Usercentrics | 1 | 1 |
| Usercake | 1 | 1 |
| Userbox Project | 1 | 1 |
| Userback | 1 | 1 |
| Useragent-spy Project | 1 | 1 |
| User-mode Linux | 1 | 1 |
| User-login-history Project | 1 | 1 |
| User-agent Switcher And Manager Project | 1 | 1 |
| User-activation-email Project | 1 | 1 |
| User Relationships Project | 1 | 1 |
| User Registration & User Management System Project | 1 | 1 |
| User Registration & Login And User Management System Project | 1 | 1 |
| User Read-only Project | 1 | 1 |
| User Project | 1 | 1 |
| User Photo Project | 1 | 1 |
| User Photo | 1 | 1 |