We're glued to our phones, computers, and countless other online services. Each one asks for a different username and password, and of course, in the end, many of us just take the easy way out. reuse the same password on all sitesWrite them down on a piece of paper or save them in a computer notepad. Convenient, yes; secure, not even close.
With massive data breaches, phishing, and automated attacks, using simple or repetitive passwords is like playing Russian roulette with your accounts. That's why more and more people are opting for a password manager, and among the local, cloud-free options, KeePassXC has become one of the most powerful and flexible solutions for both individual users and businesses.
Why you need a password manager today
Most online services still rely on the classic username and password system. The problem arises when the user does what seems logical from a human perspective, but is a disaster from a security standpoint: Use short, easy-to-remember passwords that are repeated across multiple sites.It is enough for a website to have one security breach so that the same password can serve as a master key for the rest of your accounts.
The basic recommendations are clear and form part of a good digital hygieneUse long passwords with uppercase letters, lowercase letters, numbers, and symbols, and make sure they're different for each service. But let's be honest: Remembering dozens of strong passwords is impossible in the long term.Saving them in a text file, a spreadsheet, the browser, or a post-it note on the screen is almost as bad an idea as doing nothing.
That's where password managers come in. These tools allow you to store all your credentials in an encrypted databaseIt's protected by a single master password (and, if you want, by additional factors like a key file or a physical key). You just have to remember that master password; the program takes care of the rest.
In addition to secure storage, a good modern manager offers features such as Autofill on websites and applications, strong password generation, auditing of weak or reused keys, and support for 2FA/TOTPIn other words, it not only saves passwords, it also helps you make them better.
What is a password manager and how does it work?
A password manager is, basically, an encrypted database of credentials that is accessed with a single master passwordThat file can live on your computer, on a cloud server, or both, depending on the type of manager you choose.
When you enter the master password (and any additional factors you have configured), the program decrypts the database in memory and allows you to consult, copy or autocomplete usernames, passwords and other sensitive dataWhen you lock the manager or log out, everything is re-encrypted. If someone steals the database file but doesn't know the master password (or have the key file, if you use one), they'll only see a bunch of useless data.
Key features of a good password manager
Beyond theory, there are several characteristics that make the difference between a decent manager and one that is truly practical for day-to-day use:
- encrypted storage
- The credentials are stored in a file protected with modern encryption algorithms, such as AES-256Twofish or ChaCha20. This drastically reduces the risk compared to storing passwords in unencrypted documents or mobile notes.
- Strong password generator
- The manager can create long, random keys, like this: X9#m$kL!2vP@Q, with the length and character types that you decide. This way you can use very strong passwords without having to memorize them.
- Autocomplete and autowrite
- Instead of typing username and password at each login, the manager can fill out forms or simulate writing for youThis, in addition to saving time, reduces the risk of typing credentials on a phishing website that looks like the original.
- Synchronization between devices
- Many cloud-based managers, and also well-configured local ones, allow access the same database from multiple computers and mobile devicesusing storage services like Google Drive, Dropbox, Nextcloud or P2P solutions like Resilio Sync.
- Extra security features
- Reports of weak or reused passwords, potential data breach alerts (HIBP), support for TOTP codes as a second authentication factorIntegration with physical keys (YubiKey, OnlyKey), secure notes, attachments, and much more.
What is KeePassXC and what makes it different
KeePassXC is a free, open-source, local password manager It uses the KDBX database format, compatible with the original KeePass project. It originated as a fork of KeePassX (the cross-platform version of KeePass in C++/Qt) to accelerate development and incorporate the features most requested by the community.
Unlike the purely cloud-based managersKeePassXC It does not depend on external servers or subscriptionsThe database is stored on your computer (or on the synchronization service of your choice) and is encrypted with AES-256 by default, with the option to add encryption methods like Twofish or ChaCha20. This makes it especially attractive for privacy-conscious users and for companies that don't want to delegate their secrets to third parties.
Furthermore, being multiplatform, It works on Windows, macOS, and Linux.with official extensions for Chrome, Firefox, Edge, and other Chromium-based browsers. On mobile devices, you can access the same database with compatible apps such as KeePassDX (Android), Strongbox or KeePassium (iOS), always maintaining the KDBX format.
Their most recent desktop versions (for example, 2.7.10 on Windows and macOS) include An advanced password generator, TOTP support for 2FA, YubiKey integration, password auditing, and a polished interface with light and dark themes. that meet accessibility criteria.
KeePassXC's main features in detail
KeePassXC is much more than a simple encrypted notebook. Here are the key capabilities you should know to get the most out of it:
- Secure management of credentials and notes
- You can store usernames, passwords, URLs, secure notes, two-factor authentication, and any sensitive data in one or more KDBX databases. Each entry can be organized into groups and subgroupsto tag and find each other quickly.
- Random password generator
- It includes a configurable generator for creating complex passwords with custom lengths and combinations of uppercase letters, lowercase letters, numbers, and symbols. This makes it easier to adopt good security practices made effortless.
- Strong and flexible encryption
- The database is encrypted with robust algorithms (AES-256 by default, with Twofish and ChaCha20 options) and protected by a master password. You can strengthen the protection with a key file and/or a challenge-response with YubiKey or OnlyKey.
- Compatibility and portability
- It is compatible with the KeePass 2.xy format and allows Import data from CSV, KeePass 1 and other managersYou can also export the database to CSV or HTML for migrations or one-off revisions (always with care, as it is unencrypted text).
- Browser integration
- The KeePassXC-Browser extension communicates securely with the desktop app for autofill credentials directly on websites. It works with Google ChromeFirefox, Edge, Vivaldi, Brave, Tor Browser and other compatible browsers.
- TOTP and two-factor authentication
- KeePassXC can store your secret key for services with 2FA and Generate time-based TOTP codesreplacing apps like Google Authenticator in many cases. It also saves a history of old passwords for each login.
- Advanced features for expert users
- Password status reports, SSH agent integration, FreeDesktop.org's secret service to replace keychains like the GNOME Keyring, proprietary CLI (keepassxc-cli), synchronization of database fragments using KeeShare, field references between entries, attachments and custom attributes.
Master password, key file, and physical keys
The heart of your security with KeePassXC is the master password. What protects your vault is not the individual strength of each service key, but The combination of a strong master password and, if you want, additional factors such as a key file or a YubiKey.
The recommendation is clear: use a long password, preferably a passphrase, that is difficult to guess but reasonably easy for you to rememberDo not reuse a key that you already use on another service and, if possible, use the built-in generator to create it and write it down securely if you deem it necessary.
What is a key file and why does it strengthen your security?
A key file is, literally, a file that acts as a second authentication factor to open the databaseKeePassXC doesn't use the file's contents as is, but rather its hash (its cryptographic "fingerprint"). If the file changes even slightly, the hash also changes, and you'll no longer be able to open the vault.
You can use two approaches:
- File generated by KeePassXCThe program itself creates a file with random data specifically designed as a key file.
- Existing file on your computerA photo, a PDF, a text document, an MP3… KeePassXC will only use the file's hash, so The format is irrelevant.
Regarding the file hash, it is important to keep three ideas in mind: It is unique, irreversible, and of fixed length. (For example, SHA-256 always generates 64 hexadecimal characters). If you change a single byte in the file, the hash changes completely and the database becomes inaccessible.
Very important: Do not use as a key file something downloaded from the Internet whose hash is public (For example, the ISO file of a Linux distribution whose checksum is listed on the project's website). Anyone could replicate that file, obtain the same hash, and, if they knew your master password, open your vault. The correct approach is to use a file you created yourself and keep backups in secure locations.
If the key file is deleted, corrupted, or modified, the database will no longer open. KeePassXC has no backdoors. Without a valid master password and a correct key file, the information is permanently lost.Therefore, in addition to properly protecting the master password, it is advisable to make copies of the key file and never touch it after configuring it.
Installing KeePassXC on different systems
The way to install KeePassXC varies slightly depending on the operating system, but in general the process is simple and quick.
Windows and macOS
On Windows and macOS, the easiest way is to go to KeePassXC official website (keepassxc.org) and download the installer corresponding to your system. On Windows you'll find an executable with the stable version (for example, 2.7.10) and on macOS a package ready to be dragged to Applications.
After running the installer and following the wizard, you just need to open the application and choose the option to Create new databaseOn Mac, the interface is virtually identical to that of Windows and Linux, since KeePassXC uses Qt and maintains the same structure across all platforms.
Linux (Debian, Ubuntu and similar)
On GNU/Linux distributions, you can install KeePassXC from the official repositories or using Snap packages. On Debian, for example, you simply need to install the package keepassxc from Synaptic or with:
sudo apt install keepassxc
Ubuntu also offers a Snap version, which is usually more up-to-date than the version in the repositories. You can install it with:
sudo snap install keepassxc
In both cases you will have access to the same application, with some minor differences in visual integration depending on the desktop environment. The functionality is the sameSo you can choose the method that best fits your system and update policy.
Create your first database in KeePassXC
Once installed, the first step is to create the vault where you'll store all your passwords. The process is guided and only takes a few minutes, but it's helpful to understand what you're doing on each screen.
When you open KeePassXC you will see options such as Create a new database, Open an existing database, or ImportIf this is your first time using a password manager, stick with the option to create a new database from scratch.
KeePassXC usually asks you first the file name and locationThe file will have the extension . .kdbx And you can save it in your personal folder, in a directory synchronized with the cloud, or on an additional encrypted volume if you want more layers of protection.
Next, you'll move to a screen where you define the name and a possible description of the database. This is useful if you plan to share it with others (for example, on a team) or if you'll have several vaults for different purposes and want to easily identify them.
Once you reach the encryption section, you'll see advanced options such as the algorithm, the number of iterations of the key derivation function, and a “decryption time” sliderIn most cases, the default setting is sufficient: the longer the decryption time you set, the more costly it will be for an attacker to try passwords, but it will also take you a little longer to unlock your vault.
The next step is to choose the master password and, if you wish, add Additional protection with key file and/or challenge-response (for example, using YubiKey). From that wizard you can also generate a random password for the vault and see its strength in real time.
Once the database credentials and, optionally, the key file have been defined, the wizard will ask you where to permanently save the KDBX fileFrom that moment on, your vault will be ready to start filling with secure tickets, groups, and notes.
Organization: groups, entries, and additional databases
With the database created, it's time to think about how you're going to organize all the information. KeePassXC allows you to structure your passwords very flexibly, so that everything remains under control even as the vault grows over the years.
The basic structure consists of groups (and subgroups) and entriesGroups function like folders and subfolders; entries are the specific accounts, with their username, password, URL, and other fields.
To create a new group, go to the menu Groups → Add new groupGive it a descriptive name (for example, "Banking," "Work," "Social Media") and, if you like, a short description. You can also assign it a unique icon so you can recognize it at a glance.
Within each group you can create subgroups to further refine the classification, which is useful if, for example, Do you want to separate personal and corporate passwords within the same environment?There are no strict limits: you can organize it in whatever way best suits your work style.
Entries are created from the menu Entries → Add new entry or with the toolbar button. The minimum you should fill in is:
- Title: something that helps you identify what service it is (“Gmail personal“Amazon work account”, etc.).
- Username: the login you use.
- PasswordYou can write it yourself or let KeePassXC generate it.
- URL : the login address, to open it after a double click.
From there you can take advantage of additional tabs such as Advanced (to attach files or define custom attributes), TOTP (to activate time-based one-time codes), notes, entry expiration dates, and more.
If you want to further compartmentalize your security, KeePassXC allows you to create multiple databases with different master passwords And, if you want, separate locations. For example, a personal vault and a corporate one, or a general one and another just for critical accounts like banking and main email.
KeePassXC integration with the browser
The convenience of a password manager truly shines when using it daily in your browser. KeePassXC has a dedicated extension, KeePassXC-Browser, which It allows autofilling usernames and passwords directly on websites. without having to copy and paste.
The basic steps to configure it are:
- In KeePassXC, go to Tools → Settings → Browser Integration and activate the browsers you want to use.
- Install the corresponding extension from your browser's store (Chrome Web Store, Firefox store, etc.).
- Open the extension panel in your browser and click on Connect.
- From KeePassXC, accept the connection request and, if you wish, assign a name to the link to recognize her later.
From that point on, as long as KeePassXC is open and the database is unlocked, The extension will be able to search for and suggest entries relevant to the website you are on.On first use in a new domain, the desktop client will display a dialog asking which entries you want to associate and if you want to remember that decision.
A practical tip: configure KeePassXC to Start automatically with the system And avoid accidentally closing it completely (especially on macOS, where closing the window can also close the app). This way, your vault will always be ready to integrate with your browser, and you won't find the extension "disconnected" mid-task.
Advanced usage: TOTP, password auditing, and extra features
In addition to the basic use of saving and filling in credentials, KeePassXC includes tools designed for those who want to take their security a step further and keep an eye on the weaknesses of their password "ecosystem".
In the database reports section (usually in Database → Database ReportsYou will find analyses such as:
- Weak passwords: detects keys that are too short or have low entropy.
- Reused passwords: identifies entries that share the same password, something to always avoid.
- old passwords: It helps you locate accounts that haven't been updated in a long time.
Regarding two-step authentication, KeePassXC can store the secret key that you would normally scan with a TOTP appIn the TOTP tab of each entry, you can manually enter the key or, if the app supports it, paste the code provided by the service. From then on, KeePassXC will generate the temporary codes you need when logging in.
For advanced users, there are especially useful features, such as integrated SSH agent (which allows you to manage SSH keys from the database itself), the use of KeePassXC as the provider of the FreeDesktop.org Secret Service (replacing keyrings like GNOME Keyring) or the command-line tool keepassxc-cli to automate tasks in scripts.
All of this is complemented by the possibility of Download website icons (favicons) through services like DuckDuckGomaking the list of entries more visual, and with light and dark themes adapted to your desktop environment.
Synchronize the database across devices and users
By design, KeePassXC does not include built-in cloud syncing. This doesn't mean you can't use your vault on multiple devices, but rather that You are free to choose the synchronization system that best suits you.always keeping the KDBX file encrypted.
For personal use, the simplest solution is usually to save the database in a folder synchronized with services like Google Drive, Dropbox, Nextcloud, or Synology Drive. From a mobile device, thanks to KDBX-compatible apps that integrate with the Files app on Android or iOS, You can open that same database with your master password and, if applicable, with your key file.
In enterprise environments, the database can be shared via OneDrive, SharePoint, Google Drive (in Workspace), or other on-premises solutions. Multiple employees can access the same vault simultaneously, with change synchronization managed by the underlying file service.
If the top priority is privacy from third-party providers, there are alternatives like Resilio Sync, which works in peer-to-peer (P2P) mode and without going through third-party serversIt is a very interesting option for organizations that want absolute control over where their data resides.
In all cases, it is worth remembering that, even if the database travels through the cloud or P2P networks, remains encrypted end-to-endThe real risk lies in who knows the master password and who owns the key file, not in the mere fact that KDBX is hosted by one provider or another.
If you share the vault with other users, make sure to Deliver the master password and any key files through separate and secure channels. (never through the same email or chat you use to share the database file) and limit access only to strictly necessary personnel.
Backup policy and risks to consider
Once the system is set up, there are two main risks you need to manage: firstly, losing access to the database (due to disk failure, accidental deletion, forgetting the master password or loss of the key file) and, on the other hand, that the file falls into the hands of third parties.
To mitigate the first risk, it is essential to maintain backups of the KDBX file and, if you use it, the key fileThese copies should be stored in different physical or logical locations (another hard drive, another computer, an external device stored in a secure place, etc.). Also consider scenarios such as fire, theft, or loss of the primary computer.
Regarding the second risk, the key lies in a strong master password, not unnecessarily exposing the file, and not leaving it unattended. in locations accessible to anyone with access to a computerAlthough encryption protects the content, it's always a good idea to reduce the attack surface: full disk encryption, limited accounts without administrator privileges, use of physical keys as a second factor, etc.
Keep in mind that, by design, KeePassXC does not allow you to recover a database if you forget the master password and do not have the key file. There is no "forgot my password" functionThis is precisely what prevents the existence of backdoors that an attacker could exploit, but it means that you must be very careful when managing your master credentials.
By combining a good backup policy, sensible file location, and extra factors such as YubiKey, Resilio Sync, or private cloud storage, You can build an extremely robust password management system for personal or corporate use.
Overall, KeePassXC offers a powerful combination: complete control over your data, strong encryption, no subscriptions, and a suite of advanced features suitable for both power users and businesses with minimally trained staff. It requires a slightly steeper learning curve than a fully cloud-based password manager, but in return, it provides a... flexible, expandable password vault under your sole responsibility, exactly what many people are looking for when they take their digital security seriously.
