A screenshot of KeePassX 0.4.3 running under Ubuntu MATE
|Stable release||0.4.3 / March 7, 2010|
|Preview release||2.0 beta / July 19, 2015|
|License||GNU General Public License|
KeePassX started as a Linux port of KeePass, which was at that time an open source but Windows-only password manager. Both are now cross platform, with KeePassX using Qt libraries and recent versions of KeePass using .NET / Mono.
As of August 2015, there are two versions of both KeePassX and KeePass. KeePassX 0.4.3 is binary-compatible with databases created by the version 1.X series of KeePass, and the rewrite, KeePassX 2.0 (beta) is compatible with the rewritten KeePass 2.