Best Password Crackers Reviewed for 2024

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The best password crackers can help you retrieve forgotten passwords and access lost and abandoned accounts. Organizations often use the top password crackers to test the strength of their passwords, ensuring the security of company data and software.

Choosing a password hacker isn’t easy, though. Our complete guide to the best password crackers covers features and functionality and issues like safety, speed, pricing, and cracking technology. We’ve also explored password cracker alternatives and how spy apps and keyloggers can help you track and retrieve passwords.

mSpy
  • Tracks real-time GPS location
  • Monitors social media messages
  • Records all keystrokes typed
Spynger
  • Robust Keylogger
  • Comprehensive Chat App Coverage
  • Can Access Deleted Content
uMobix
  • Can Display Screenshots
  • Precise GPS Tracking
  • Live App Alerts

Best Password Cracker Software Solutions Ranked

  1. AirCrack — Best password cracker for usability
  2. Password Cracker — Best multi-language password tracker for Windows
  3. Rainbow Crack — Best online hash cracker that uses rainbow tables
  4. Medusa — Best password cracker for brute force parallel testing
  5. Brutus — Best free four-digit password cracker for Windows
  6. Crack Station — Best password cracker for dictionary attacks
  7. OphCrack — Most versatile password finder, working across Windows, Mac, and Linux
  8. Hashcat — Fast, comprehensive password cracker for cracking complex passwords
  9. John the Ripper — Open-source password cracker that’s ideal for finding weak passwords
  10. THC Hydra — Best WiFi password cracker for use across multiple devices

Best Password Cracker Tools Reviewed

To help you find the best one for your needs, we’ve taken a detailed look at each of our top recommendations, including their best features, pros, cons, and pricing. Ready?

1. AirCrack — Best Password Cracker for Usability

AirCrack logo

Free or Paid Top Features Compatibility
Free Open-source platform, Complete WiFi network security, Multiple algorithms supported Windows, Linux, macOS, FreeBSD, OpenBSD, NetBSD, Solaris, eComStation
Why We Picked It

AirCrack is a popular wireless network scanner used for hacking, penetration testing, and network administration. You can use it to crack both WPA and WEP passwords.

Features

AirCrack’s algorithm is designed to analyze encrypted packets and crack them, and together with its FMS attack feature, it can easily crack any password.

This feature can be used in two ways:

  • Access WiFi networks that you don’t have access to
  • Use it to improve the security of your own WiFi password by testing connections and monitoring fake access points.

Our favorite thing about AirCrack is its detailed documentation. It has a section dedicated to installation guides, getting started, and device compatibility. The instructions are simple to follow, ensuring that even beginners can set it up on their own.

It also has a special forum for all its users where you can post queries regarding the platform and have other fellow users help you out. If that doesn’t suffice, you can join its channel on Libera Chat to interact directly with the team.

To top it off, AirCrack is completely free to use. It’s also compatible with several systems, including OS X, Windows, Linux, FreeBSD, NetBSD, OpenBSD, Solaris, and eComStation2.

Pros

  • Functional across many operating systems
  • Works with wireless network encryption
  • Provides command line for an instant grind
  • Popular password cracker with many positive reviews

Cons

  • Some advanced features might be difficult to use

2. Password Cracker — Best Multi-Language Password Tracker for Windows

Password Cracker logo

Free or Paid Top Features Compatibility
Free Offline tool without leaks, Can view hidden passwords, Multiple languages Windows
Why We Picked It

Password Cracker is a simpler tool designed to discover hidden and forgotten passwords. It’s completely free to use, just like AirCrack, and you’ll just have to download it. You can use it across any Windows device or on your browser, so you never have to worry about misplaced passwords.

Features

A lot of applications use asterisks to hide your passwords for security reasons, which may force you to note down the password elsewhere, such as using one of the best password managers.

However, with Password Cracker, you can bid farewell to that issue. All that you have to do is hover the cursor over the Test Field, and it’ll show you your password.

What if your system is set to a different language? Luckily for you, Password Cracker is compatible with multiple languages. That said, the only thing that we didn’t like about Password Cracker is that it can’t crack MS Office password-protected documents because its password encryption style isn’t supported.

But on the brighter side, it’s fairly simple to use and has over a million downloads. Additionally, despite its huge customer base, there hasn’t been any report of data or hash leaks so far, making it evidently safer than most other password-cracking options.

Pros

  • Supports multiple languages
  • Known for its ease of use
  • No hash leaks, making it entirely safe
  • Fast password cracking software and top Windows password cracking

Cons

  • Works only for Windows application

3. Rainbow Crack — Best Online Hash Cracker Using Rainbow Tables

Rainbow Crack

Free or Paid Top Features Compatibility
Free Command line and GUI interface, Uses large-scale time-memory trade-off, Rainbow tables can be bought Windows, Linux
Why We Picked It

Rainbow Crack is a desktop tool that’s best known for quick password cracking. It’s one of the best online hash crackers today.

Features

Rainbow Crack sets itself apart from others that rely on brute force to crack passwords. Instead, it uses a unique large-scale time-memory technique to help you retrieve hash passwords for free.

The results from the time-memory method are then stored in a Rainbow Table, which is then used to crack the codes using brute force. While creating the Rainbow Table can be painstaking, you’ll be able to crack passwords at lightning speed once it’s ready.

Also, since having a pre-computed table of passwords and hash pairs simplifies password cracking, a good deal of software these days adds a unique twist to the passwords with a random value. While such passwords will require a larger rainbow table to crack, Rainbow Crack is certainly capable of handling it.

You can either create your own custom rainbow tables or make use of Rainbow Crack’s pre-designed templates. It offers a generous range of free tables for LANMAN, NTLM, MD5, and SHA1 password systems. If needed, you can also opt for paid tables.

Another benefit of using Rainbow Crack is that it supports both Windows and Linux devices. For Windows, the current software will support versions 7 and 10. For Linux, it’ll support 18.04 and 20.04.

Pros

  • One of the fastest password crackers
  • Higher success probability
  • Requires fewer processing resources
  • Easy and quick authentications without hurdles

Cons

  • Requires a lot of storage

4. Medusa — Best Password Cracker for Brute Force Parallel Testing

Medusa logo

Free or Paid Top Features Compatibility
Free Fast, stable logins, GPL-2 license, Test 2,000+ in under a minute Linux, SunOS, BSD, macOS
Why We Picked It

The Medusa password cracker uses brute force parallel testing to help you crack passwords and retrieve forgotten passwords for free. It’s similar to THC Hydra and was created for the same purpose. However, there are a few significant differences at the technical level.

Features

Medusa has a GPL-2 license, while THC Hydra has a GPL-3 license. The benefit of a GPL-2 license is that it comes with stricter copyleft protections, meaning more security.

As a fast-paced command line tool, Medusa can test up to 2,000 passwords in a minute. Along with a list of passwords to try, you can also get a list of usernames and email addresses to test during the process.

This feature will help you conduct thread-based multiple-processing procedures to crack passwords, which will make the whole process faster and more efficient for you. However, it’s a command-line tool, meaning you’ll need some command-line knowledge to use it.

The best part is that you don’t need access to the target device to crack the password — Medusa lets you access and enter the system remotely, and it supports multiple protocols, such as HTTP, MB, MS-SQL, POP3, and SSHv2.

That means regardless of the device type or network, Medusa will help you retrieve the password.

Pros

  • Allows remote access to systems
  • Works on various devices and systems
  • No unnecessary information duplication
  • Can perform thread-based parallel testing

Cons

  • Requires command-line knowledge

5. Brutus — Robust Free 4-Digit Password Cracker

Brutus logo

Free or Paid Top Features Compatibility
Free SOCK proxy for all authentications, Error handling and recovery, Load and resume Windows
Why We Picked It

Brutus was released in 2000 and has kept its position as one of the fastest and most flexible remote password-cracking tools. The tool only serves Windows devices but is often named as the best free password cracker for the OS.

Features

In terms of flexibility, it’s one of the few password-cracking tools that lets you pause, resume, or import an attack. For instance, if you’re trying to crack a password on your existing system and realize it can’t run the function, you can immediately pause and import it to a different system without losing your progress.

The only thing that we didn’t like about Brutus is that it hasn’t been updated in a long time. Hence, it’s not suitable for complex passwords that use a combination of digits, letters, and special characters.

Also, since it’s limited to Windows devices, you can use it to break into social media accounts or email IDs. Simply put, it does a few things, but it does them well.

To make up for its shortcomings, it offers a wide variety of authentication protocols such as HTTP (basic authentication), HTTP (HTML Form/CGI), POP3, FTP, SMB, Telnet, IMAP, and so on. If needed, you can also add custom modules to it. Plus, to top it off, Brutus also offers up to 60 simultaneous connections for all users.

Pros

  • One of the fastest password crackers
  • Create your own authentication type
  • Handy load and resume function
  • Multi-stage authentication engine

Cons

  • Only works on Windows
  • Not updated since 2000

6. CrackStation — Best Password Cracker for Dictionary Attacks

Crackstation logo

Free or Paid Top Features Compatibility
Free Web-based password cracker, Uses dictionary attack technique, Works on mobile devices N/A
Why We Picked It

CrackStation is a web-based password cracker and is a robust tool for dictionary attacks.

Features

CrackStation uses pre-computed lookup tables to help you crack the code to an application or device, just like Rainbow Crack. These tables contain the mapping between the hash of a password and the correct password for that hash. To speed up the search process for a hash value, each entry is indexed.

If the password that you’re looking for is in the table, it’ll only take you a few seconds to crack it. CrackStation’s technique is a variation of dictionary attacks containing a combination of both dictionary words and public password dumps.

In total, the lookup tables contain over 15 billion entries extracted from various online sources. In short, there’s hardly any password CrackStation can’t crack. Additionally, you don’t even have to create an account to get started.

Once you visit the website, you can directly add up to 20 unsalted hashes per line on the home page, confirm you’re a human, and crack the passwords — that’s how simple it is. The only con is that it doesn’t work with salted passwords.

Password salting is a common technique to enhance the strength of a password by attacking a random string of characters. As such, this is also a common practice incorporated by the best business password managers.

That said, these passwords aren’t usually used on personal devices, so CrackStation remains a great choice.

Pros

  • Works on any operating system
  • Supports various protocols
  • A simple setup, making it easy to use
  • Doesn’t store any user data

Cons

  • Only uses non-salted hashes

7. OphCrack — Most Versatile Password Finder

OphCrack logo

Free or Paid Top Features Compatibility
Free OphCrack LiveCD, Works on LM and NTLM hashes, Uses rainbow tables Linux, Windows, Mac, FreeBSD
Why We Picked It

OphCrack is a free Windows password cracker tool based on rainbow tables, as with Rainbow Crack and CrackStation. It’s an extremely versatile cracking tool, and along with Windows, it also supports Linux/Unix and MacOS X systems.

Features

In our research, OphCrack successfully recovered 99.99% of alphanumeric passwords — the ones commonly used on personal devices. For simple passwords like these, it uses a brute-force module which is basically a trial-and-error method — success is almost guaranteed with this technique.

Along with its quick cracking system, it’s also popular for its user-friendly interface. While most other password-cracking tools require a substantial amount of technical expertise, you can get started with OphCrack even if you aren’t tech-savvy.

OphCrack is best equipped to crack LM and NTLM passwords — the two ways all passwords on Windows devices are stored. If you need assistance cracking the passwords, you’ll also find a live CD of OphCrack on cracking Windows-based passwords.

Since OphCrack is a free and open-source platform, all tech experts are welcome to look at its fundamental codes if they find any discrepancies within the platform. This way, you won’t have to wait for OphCrack’s team to fix the issues before you can go back to password cracking.

Pros

  • Simple user interface
  • No requirement for prior passwords
  • Works on Mac, Linux, OS X, and Unix
  • Doesn’t require software installation
  • Highly flexible password cracking tool

Cons

  • Can’t recover 14-character or longer passwords

8. Hashcat — Fastest Password Cracker to Crack Complex Passwords

Hashcat logo

Free or Paid Top Features Compatibility
Free Automatic password recovery, Supports 300+ hashes, In-kernel rule engine Windows, Linux, macOS, Android, iOS, Windows mobile
Why We Picked It

Hashcat identifies itself as the world’s fastest password-cracking tool, and running GPU acceleration, it outperforms John the Ripper in terms of speed. It’s also the only password recovery platform that has an in-kernel rule engine, which is why it’s commonly used by pen testers and red teamers to test password policies.

Features

What makes Hashcat stand apart from the competition is that it’s available for almost every operating system and cracks 300 different types of hashes. This means that no matter what kind of password the target device has, Hashcat is the most-equipped tool to crack it, and you won’t need the support of any secondary tool.

That said, Hashcat‘s biggest USP is simultaneous password cracking. With its highly parallelized password-cracking technique, you’ll be able to crack multiple passwords on multiple devices at the same time and also distribute the hash-cracking system via overlays. This makes the whole process much more efficient.

Along with remote password recovery, Hashcat can also help you with offline password recovery exercises. Its most common method of cracking is a Dictionary Attack, where the target password is matched with a dictionary list of common phrases and words used by businesses and individuals.

Hashcat takes it a step ahead by allowing you to add custom rules to the attack technique, which will certainly speed up the process.

Pros

  • Works even on mobile devices
  • Doesn’t store any passwords
  • Known as the world’s fastest password cracker
  • Employs various password-cracking techniques

Cons

  • Limited application compared to peers

9. John the Ripper — Open-Source Password Cracker to Identify Weak Passwords

John the Ripper logo

Free or Paid Top Features Compatibility
Free GUI-based paid version, Multi-platform, Extensive command lines Windows, macOS, Linux
Why We Picked It

John the Ripper is an open-source password auditing and password recovery tool. It’s compatible with several device types, including Linux, Windows, and macOS, as well as web apps such as WordPress and more, and it’s a great tool for highlighting weak passwords.

Features

What makes it unique is that it helps you with both local and remote password recovery. For instance, if you’ve lost access to your work device, you can use its local password recovery feature.

On the other hand, if you need access to a device while you’re away on a trip, you can benefit from John the Ripper’s remote password recovery feature.

It uses Brute Force attacks and Dictionary Attacks to crack passwords, and it’s usually used by security experts of large organizations and companies to check the strength of their office system passwords.

While it’s primarily built to detect UNIX passwords, it can now also detect Windows LM and other types of password hashes. That said, what makes it slightly different from other password-cracking tools is that it has two versions:

  • A free, open-source version that anyone can download. These features are best suited for non-commercial purposes.
  • A commercial version, which is also free, available for Linux and macOS X on Intel and AMD processors.

    The only difference between the two is that the Pro version is in native format and meant for specific operating systems only.

    Pros

    • An open-source tool that’s free to use
    • Combines various password-cracking methods
    • Easy to use for beginners
    • Available in over 20 languages

    Cons

    • Difficult to set up

    10. THC Hydra — Best WiFi Password Cracker for Use Across Multiple Devices

    THC Hydra logo

    Free or Paid Top Features Compatibility
    Free Multi-threaded combination testing, Simultaneous protocol checks, External word list supported Windows, macOS, Linux, Free BSD, Solaris
    Why We Picked It

    THC Hydra is commonly used by security consultants and researchers for looking for vulnerabilities and testing the security functionality of applications and systems.

    It supports 50+ protocols — one of the largest number of security protocols supported by any password-cracking tool. These protocols include HTTPS, Oracle, SID, Telnet, and more. All in all, it’s great WiFi password hacker software.

    Features

    A benefit of using THC Hydra is that its functions aren’t limited to any one platform. Its algorithm works with Windows, macOS, and Unix devices.

    It’s also one of the few password-cracking tools that support mobile devices such as Androids, iPhones, and Blackberry. No matter what your target device is, you can gain access to it with just one tool.

    That said, THC Hydra uses a brute-force password-guessing attack technique to crack the codes. Here, the tool uses every combination of letters, numbers, and special characters until it finds the password. Despite being one of the most common techniques, it’s efficient and has minimum chances of error.

    Also, since it’s open-source software — like OphCrack and John the Ripper — you can check its code and contribute to the structure to transform the tool.

    Pros

    • A fast password-cracking solution
    • Supports numerous protocols
    • Works with Dictionary and Brute Force attacks
    • Compatible with Linux, Windows, OS X, and Solaris

    Cons

    • Can slow your system a bit

    The Best Tools for Password Cracking Compared

    Here’s a quick table highlighting the key differences between all of our top picks to help you arrive at a decision:

    Password Cracker Free or Paid Top Features Compatibility
    AirCrack Free Open-source platform, Complete WiFi network security, Multiple algorithms supported Windows, Linux, macOS, FreeBSD, OpenBSD, NetBSD, Solaris, eComStation
    Password Cracker Free Offline tool without leaks, Can view hidden passwords, Multiple languages Windows
    Rainbow Crack Free Command line and GUI interface, Uses large-scale time-memory trade-off, Rainbow tables can be bought Windows, Linux
    Medusa Free Fast, stable logins, GPL-2 license, Test 2,000+ in under a minute Linux, SunOS, BSD, macOS
    Brutus Free SOCK proxy for all authentications, Error handling and recovery, Load and resume Windows
    CrackStation Free Web-based password cracker, Uses dictionary attack technique, Works on mobile devices N/A
    OphCrack Free OphCrack LiveCD, Works on LM and NTLM hashes, Uses rainbow tables Linux, Windows, FreeBSD
    Hashcat Free Automatic password recovery, Supports 300+ hashes, In-kernel rule engine Windows, Linux, macOS, Android, iOS, Windows mobile
    John the Ripper Free GUI-based paid version, Multi-platform, Extensive command lines Windows, macOS, Linux
    THC Hydra Free Multi-threaded combination testing, Simultaneous protocol checks, External word list supported Windows, macOS, Linux, Free BSD, Solaris
    Methodology

    How We Review And Test Spyware Apps

    Important Note: Spy software is not legal to use without the device owner’s permission in many countries and states. When we test spy software, we do so only with the explicit consent of the device owner and in compliance with local laws and regulations.

    To provide our readers with accurate and well-informed recommendations, we test the most popular spy applications on the market to find the best options for you. Our methodology consists of the following criteria:

    • General Features: We evaluate the comprehensive feature set of each spy app, including but not limited to features such as App Management, Time Management, Call Monitoring, Device Control and GPS Tracking.
    • Ease of Use: We gauge the user-friendliness of each app, considering factors such as installation process complexity, the necessity of jailbreaking (for iOS) or rooting (for Android) the target device, and more.
    • Device Support and Compatibility: We thoroughly examine the compatibility of each spyware app with different devices and operating systems, including iOS and Android. We also assess whether the app offers a unified dashboard accessible from both desktop and mobile devices.
    • Customer Support: We test the responsiveness and effectiveness of customer support provided by each app developer. We evaluate the availability of support channels, such as live chat, email, or phone support, as well as the satisfaction ratings of customer assistance.
    • Price and Value for Money: We assess each spyware app’s pricing structure in relation to its features and functionalities, aiming to determine its overall value proposition. We analyze whether the app offers different subscription tiers, flexible payment options, and discounts for long-term commitments. Additionally, we check whether the app provides free trials or demos for users to test its capabilities before making a purchase.
    • Privacy and Security: We prioritize the privacy and security of user data in our evaluation. We scrutinize the app’s data encryption measures, adherence to privacy regulations, and commitment to regular security updates to safeguard user information from unauthorized access or breaches.

    How Do Password Crackers Work?

    Password cracking is the technique of utilizing a software application to find lost or forgotten passwords. There are dozens of password-cracking applications available, each with its unique formula. Still, they mainly perform one of two tasks:

    • Either generate password variations from a dictionary of well-known passwords or
    • Use a technique known as a Brute Force attack to try every combination.

    Password cracking applications work by processing and analyzing large volumes of hashes using different ways. Like fingerprints used for identification, a hash converts an input string into a shorter-length output string.

    Once the password is discovered, other codes with the same traits can also be cracked.

    If you know how 5% of individuals create their passwords, you can extend this knowledge to create a dictionary for all 3,700 additional characters, including lower and uppercase letters, symbols, and digits, which account for 93% of potential passwords.

    Software cracking tools, which remove copy protection from software, may use some similar techniques but are fundamentally different.

    How Long Does it Take to Crack a Password?

    Wondering how long it’ll take to break an 8-character password like “password”? You might be surprised by the answer — less than 30 minutes. If your security code is one of the most popular (like qwerty or 123456), a hacker can guess it in a fraction of a second.

    If a password is only five or six characters long (whether just numbers or a combination of letters, numbers, and symbols), it’ll likely be hacked immediately. An eight-letter lowercase password might take an average of five minutes with a minute of processing time.

    An 8-character password, on the other hand, takes longer to decode if it’s at least one number or special character. However, if a password is simply digits and up to 18 characters long, it may take an attacker up to nine months to figure it out. Clearly, the stronger the password, the more difficult it is to crack.

    Combining different character kinds (uppercase and lowercase letters, special symbols, and numerals) will strengthen your character combo and extend the cracking time from milliseconds to millennia.

    Are There Free Password Cracking Tools?

    Yes, there are free password-cracking tools available, such as RainbowCrack. This free desktop tool is specifically designed for cracking password hashes and can recover passwords from various online applications.

    It offers a faster password-cracking solution than other brute force crackers, using a time-memory trade-off technique to compute passwords. The results are then stored in a rainbow table, which can crack passwords through brute force methods.

    However, not all free tools are reliable. Some free password crackers are prone to security issues, with no regular updates, and lack advanced features. Thus, it’s advisable to be cautious when using these tools and shift to paid ones that guarantee quality and security.

    Best Password Cracker Alternatives

    If you’re looking for password breaking tools, you may also be interested in spy tools and keyloggers, which can help you monitor devices and track data inputs.

    Spy tools come with a wide range of functionality and can enable you to monitor:

    • Screen – Remotely view the display and automate screenshots
    • Data inputs – Use a keylogger to track all data entered on the device
    • Surroundings – Access the camera and microphone
    • Control apps – Track social media apps, texts, messages, and browser history
    • Location – Find and monitor GPS locations
    • Device use – Block apps and disable the device

    Here are some of the best device monitoring apps on the market today:

    Provider Starting Price Top Features Money-Back Guarantee
    mSpy $11.67/month Deep device access, app control, screen recording 14 Days
    Spynger $9.28/month Robust keylogger, full chat app control, access deleted content 14 Days
    uMobix $12.49/month Screenshot display, get app alerts, block keywords 14 Days
    Scannero $49.80/month 100% anonymous location tracking, one-day trial 14 Days
    SpyBubble Pro $10.62/month Access deleted content, monitor apps, SMS tracking 30 Days

    Top Password-Cracking Techniques That Hackers Use

    To prevent any data leak attempts, you need to get in the shoes of a hacker. Here are some popular password-cracking techniques and tips for preventing them:

    Brute Force AttackDictionary AttackRainbow Table AttackSpidering

    Brute Force Attack

    Brute force attacks include hackers guessing their way into a user’s profile using several methods, generally on a trial-and-error basis.

    Brute force password crackers work as a password guesser and generate hashes from millions of potential passwords and compare them to the hash of your password.

    This might involve attackers attempting to use common passwords, such as “password123,” against recognized usernames. Once a hash has been decrypted it can be applied to other accounts with the same password.

    Plaintext passwords, of course, don’t even need to be descrypted.

    Dictionary Attack

    As the name suggests, the dictionary attack uses a file containing phrases that can be accessed in a dictionary. In other words, the terms used in this attack are exactly the same ones many people use as their passwords.

    The process requires a lot of computing, which makes it highly time-consuming.

    Rainbow Table Attack

    Rainbow table attacks eliminate the need to keep many password-hash combinations. Rainbow tables remember bits of hashes before attempting to retrieve the entire string, reducing volume and making every password-hash match much easier to find.

    Rainbow table attacks can be prevented by employing several measures, such as the salt technique, which involves adding random data to passwords before hashing them.

    Spidering

    This scans an organization’s external or internal communications for phrases or words that staff members may use as passwords. The more marketing materials and training manuals a business has, the easier it’ll be to guess its passwords.

    Really clever hackers have automated the process and use spidering software, such as those used by top search engines to find keywords, to gather and merge the lists on their behalf.

    FAQs

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    Krishi Chowdhary
    Tech Expert
    Krishi Chowdhary
    Tech Expert

    Krishi Chowdhary has half a decade of experience writing buying guides and product reviews for numerous leading technology websites. He spent two years writing for Business2Community.com before joining Techopedia.com. He has a degree in Commerce and extensive experience in the technology industry. He's also the key driver behind TechReport.com's news content, delivering expertise insight into the latest tech and cybersecurity news daily.