The University of Tartu recommends that passwords saved in web browsers should be exported and moved to a password manager: Exporting passwords from a web browser

LastPass and Bitwarden are both popular password managers, but it's important to remember that they are cloud-based solutions. This means that passwords are stored on LastPass/Bitwarden servers, which may pose some security risks. To get a stronger protection, we recommend using KeePass or KeePassXC.

Strong Security
KeePass supports the Advanced Encryption Standard (AES, Rijndael) and the Twofish algorithm to encrypt its password databases. Both of these ciphers are regarded as being very secure. AES e.g. became effective as a U.S. Federal government standard and is approved by the National Security Agency (NSA) for top secret information.
The complete database is encrypted, not only the password fields. So, your user names, notes, etc. are encrypted, too.
SHA-256 is used to hash the master key components. SHA-256 is a 256-bit cryptographically secure one-way hash function. No attacks are known yet against SHA-256. The output is transformed using a key derivation function.
Protection against dictionary and guessing attacks: by transforming the master key component hash using a key derivation function (AES-KDF, Argon2, ...), dictionary and guessing attacks can be made harder.
Process memory protection: your passwords are encrypted while KeePass is running, so even when the operating system dumps the KeePass process to disk, your passwords aren't revealed.
[2.x] Protected in-memory streams: when loading the inner XML format, passwords are encrypted using a session key.
Security-enhanced password edit controls: KeePass is the first password manager that features security-enhanced password edit controls. None of the available password edit control spies work against these controls. The passwords entered in those controls aren't even visible in the process memory of KeePass.
The master key dialog can be shown on a secure desktop, on which almost no keylogger works. Auto-Type can be protected against keyloggers, too.
See also the security information page.

Multiple User Keys
One master password decrypts the complete database.
Alternatively you can use key files. Key files provide better security than master passwords in most cases. You only have to carry the key file with you, for example on a floppy disk, USB stick, or you can burn it onto a CD. Of course, you shouldn't lose this disk then.
For even more security you can combine the above two methods: the database then requires the key file and the password in order to be unlocked. Even if you lose your key file, the database would remain secure.
[2.x] Additionally, you can lock the database to the current Windows user account. The database can then only be opened by the same person who created it.
See also the keys information page.

Portable and No Installation Required, Accessibility
KeePass is portable: it can be carried on an USB stick and runs on Windows systems without being installed.
Installer packages are available, too, for the ones who like to have shortcuts in their Windows start menu and on the desktop.
KeePass doesn't store anything on your system. The program doesn't create any new registry keys and it doesn't create any initialization files (INI) in your Windows directory. Deleting the KeePass directory (in case you downloaded the binary ZIP package) or using the uninstaller (in case you downloaded the installer package) leaves no trace of KeePass on your system.
Ports for other systems like Android, iOS, etc. are available. See the downloads page.
[2.x] Accessibility: KeePass 2.x features an advanced option that explicitly optimizes the user interface for screen readers.

Export To TXT, HTML, XML and CSV Files
The password list can be exported to various formats like TXT, HTML, XML and CSV.
The XML output can be easily used in other applications.
The HTML output uses cascading style sheets (CSS) to format the table, so you can easily change the layout.
The CSV output is fully compatible with most 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 Microsofts Excel or OpenOffice's Calc.
Many other file formats are supported through KeePass plugins.

Import From Many File Formats
KeePass uses the common CSV export format of various passwords safes like Password Keeper and Password Agent. Exports from these programs can be easily imported to your KeePass databases.
KeePass can parse and import TXT outputs of CodeWalletPro, a commercial closed-source password safe.
KeePass can import TXT files created by Bruce Schneier's Password Safe v2.
[2.x] Out of the box, KeePass supports importing more than 35 formats (see Help: Import).
Many other file formats are supported through KeePass plugins.

Easy Database Transfer
A password database consists of only one file that can be transferred from one computer to another easily.

Support of Password Groups
You can create, modify and delete groups, in which passwords can be sorted into.
The groups can be arranged as a tree, so a group can have subgroups, those subgroups can have subgroups themselves, etc.
See also this screenshot.

Time Fields and Entry Attachments
KeePass supports time fields: creation time, last modification time, last access time and expiration time.
You can attach files to password entries (useful to store PGP signature files in KeePass for example).
[2.x] KeePass has a powerful internal viewer/editor for text files, images and documents. You don't even need to export attached files to view/edit them! For security considerations, see 'Security: Viewing/Editing Attachments'.

Auto-Type, Global Auto-Type Hot Key and Drag&Drop
KeePass can minimize itself and type the information of the currently selected entry into dialogs, webforms, etc. Of course, the typing-sequence is 100% user-customizable, read the documentation file for more.
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&dropped into other windows.

Intuitive and Secure Windows Clipboard Handling
Just double-click on any field of the entry list to copy its value to the Windows clipboard.
Timed clipboard clearing: KeePass can clear the clipboard automatically some time after you've copied one of your passwords into it.

Searching and Sorting
You can search for specific entries in the databases.
To sort a password group, just click on one of the column headers in the password list, you can sort by any column.

Multi-Language Support
KeePass can be translated into other languages very easily.
Over 45 different languages are available!
See the translations page.

Strong Random Password Generator
KeePass can generate strong random passwords for you.
You can define the possible output characters of the generator (number of characters and type).
Random seeding through user input: mouse movement and random keyboard input.

Plugin Architecture
Other people can write plugins for KeePass.
Plugins can extend the functionality of KeePass, like providing additional import/export methods for other file formats.
Go to the plugins page for more information and plugin downloads.

Open Source
KeePass free and you have full access to its source code!
Open Source prevents backdoors. You can have a look at its source code and compile it yourself.
You can yourself check if the security is implemented correctly, you can, if you want, use any other encryption algorithm.
Opening the sources also encourages other people to port the application to other systems (PocketPC version already in development) or write translations.
KeePass is OSI Certified Open Source Software. OSI Certified is a certification mark of the Open Source Initiative.