|This article relies on references to primary sources. (August 2011)|
||This article needs additional citations for verification. (September 2011)|
KeePass 2.x Main Window
|Initial release||November 16, 2003|
|Stable release|| (April 5, 2013 ) [±]|
|Written in||C# (2.x version),
C++ (1.x version)
|Operating system||Windows; GNU/Linux, OS X, BSD with Mono (Professional Edition)|
Runtime security 
According to the utility's author, KeePass was one of the first password management utilities to use security-enhanced password edit controls, in this case one called CSecureEditEx. The author makes several claims regarding the security of the control and its resistance to password revealing utilities; however, the author does not cite or make any references to any third-party testing of the control to corroborate the claims of its security. The software can be tested, since the source code is freely available.
Passwords are protected in memory while KeePass is running. On Windows Vista and Windows 7, passwords are encrypted in process memory using Windows Data Protection API, which allows storing the key for memory protection in a secure, non-swappable memory area. On previous Windows systems, KeePass falls back to using the ARC4 cipher with a temporary, random session key.
Offline security 
Access to the database is restricted by either a master password or a key file. Both methods may be combined to create a "composite master key". If both methods are used, then both must be present to access the password database. KeePass version 2.x introduces a third option—dependency upon the current Windows user. KeePass encrypts the database with the AES or Twofish symmetric ciphers. AES is the default option, and Twofish is available in 1.x, but is not available in version 2.x. However a separate plugin provides Twofish as an encryption algorithm.
Password management 
Passwords stored by this application can be further divided into manageable groups. Each group can have an identifying icon. Groups can be further divided into subgroups in a tree-like organization.
Further, KeePass tracks the creation time, modification time, last access time, and expiration time of each password stored. Files can be attached and stored with a password record, or text notes can be entered with the password details. Each password record can also have an associated icon.
Import and export 
The password list can be exported to various formats like TXT, HTML, XML and CSV. The XML output can be used in other applications and re-imported into KeePass using a plugin. The CSV output is compatible with many other password safes like the commercial closed-source Password Keeper and the closed-source Password Agent, also the CSVs can be imported by spreadsheet applications like Microsoft Excel or OpenOffice.org Calc. Exports from these programs can be imported to KeePass databases. KeePass can parse and import TXT outputs of CodeWalletPro, a commercial closed-source password safe. It can import TXT files created by Bruce Schneier's Password Safe v2. File format support can be expanded through the use of KeePass plugins. The HTML output uses Cascading Style Sheets (CSS) to format the table, which makes it possible to change the layout.
Multi-user support 
Keepass supports simultaneous access and simultaneous changes to a shared password file by multiple computers (often by using a shared network drive), however there is no provisioning of access per-group or per-entry. As of December 2012, there are no plugins available to add provisioned multi-user support, but there exists a closed-source server Pleasant Password Server that is compatible with the Keepass client and includes provisioning.
Auto-type, global hot keys, drag-and-drop 
Auto-type, global auto-type hot key combination and drag-n-drop support: KeePass can minimize itself and type the information of the currently selected entry into dialogs, webforms, etc. KeePass features a global auto-type hot key. When KeePass is running in the background (with opened database) and you press the hot key, it looks up the correct entry and executes its auto-type sequence. All fields, title, username, password, URL and notes can be drag-n-dropped into other windows.
Windows clipboard handling allows to double-click on any field of the password list to copy its value to the Windows clipboard. KeePass can clear the clipboard automatically some time after the user has copied one of his passwords into it. KeePass features a protection against clipboard monitors (other applications won't get notifications that the clipboard content has been changed)) and it has a paste-once functionality: allow only one paste operation, after pasting the clipboard is cleared automatically by KeePass. The latter was removed in 2.x due to incompatibility and insufficient effectiveness.
Browser Support 
The auto-type functionality works with all windows, and consequently with all browsers. The KeeForm extension allows to open websites with Internet Explorer and Mozilla Firefox and fill in user details automatically. For Internet Explorer, there's also a browser integration toolbar available.
Built-in password generator 
KeePass features a built-in password generator that generates random passwords. Random seeding can be done through user input (mouse movement and random keyboard input).
KeePass has a plugin architecture. There are various plugins available on the KeePass homepage (import/export from/to various other formats, database backup, integration and automation, etc.). Note that plugins may compromise the security of KeePass, because they are written by independent authors and have full access to the KeePass database.
Other versions 
- KeePassX, a multi-platform open-source KeePass clone for Linux and OS X, built using version 4.3 of the Qt libraries. As of October 2011[update], databases created by KeePassX 0.4.3 are binary-compatible with databases created by KeePass, with support for the Keepass 2.x database format implemented in a new alpha release in May 2012
- 7Pass for Windows Phones, a Windows mobile port of KeePass for Windows Phone 7 devices
- KeePass for Blackberry, a Blackberry port of KeePass for RIM devices
- KeePassMobile, KeePass port for mobile phones (Java ME)
- KeePass for J2ME, a Java ME port of KeePass for mobile phones
- iKeePass for iPhone, a port of KeePass for the iPhone, compatible with versions 1.x
- MiniKeePass for iPhone, compatible with versions 1.x and 2.x
- MyKeePass for iPhone, compatible with versions 1.x and 2.x
- KeePassDroid, a port of KeePass for the Android platform
- Keepass2Android, a port of KeePass 2.x for the Android platform using Mono for Android
- KeePass for SmartDevices, a port of KeePass for Windows Mobile and PocketPC devices
- KyPass for iPhone/iPad, a fork of MyKeePass with full dropbox support
- KeePass for OS X, using Mono
- PassDrop for iPhone and iPad including a fullscreen interface on the iPad. Includes full read/write dropbox support, compatible with version 1.x
KeePass has been selected for inclusion on the VALO-CD, a Finnish collection of software for Windows.
See also 
- KeePass 1.25 available! on KeePass website
- KeePass 2.22 available! on KeePass website
- Dominik Reichl. "Secure Edit Controls - KeePass". Retrieved 2009-11-14.
- Dominik Reichl (2005-04-17). "CSecureEditEx - A More Secure Edit Control". The Code Project.
- Dominik Reichl. "Security - KeePass". Retrieved 2007-12-13.
- Dominik Reichl. "Composite Master Key - KeePass". Retrieved 2009-11-14.
- Dominik Reichl. "KeePass Help Center". Retrieved 2012-12-28.
- "Pleasant Password Server". Retrieved 2012-12-28.
- Dominik Reichl. "What happened to the paste-once functionality in 2.x? - KeePass Forums". Retrieved 2012-10-14.
|Wikimedia Commons has media related to: KeePass Screenshots|