U3 was a platform created by SanDisk and M-Systems for portable Windows applications on special USB flash drives. U3 is discontinued since 2009.
The KeePass packages on this page were contributed by various people and will most likely not be updated anymore.
It is recommended to use the standard portable version of KeePass instead (which you can get from the KeePass downloads page).
KeePass 1.x for U3
U3 packages of KeePass 1.x have been contributed/updated by various people. The last U3 package can be downloaded below.
Download: KeePass 1.20 U3 Package.
KeePass 2.x for U3
Download: KeePass 2.19 U3 Package.