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Ophcrack

Password cracking

Ophcrack Description
Ophcrack is a free open source (GPL licensed) program that cracks Windows log-in passwords by using LM hashes through rainbow tables. The program includes the ability to import the hashes from a variety of formats, including dumping directly from the SAM files of Windows. On most computers, ophcrack can crack most passwords within a few minutes.
Rainbow tables for LM hashes are provided for free by the developers. By default, ophcrack is bundled with tables that allows it to crack passwords no longer than 14 characters using only alphanumeric characters. Available for free download are four Windows XP tables and four Windows Vista tables.
Objectif Sécurité has even larger tables for purchase, intended for professional use. Larger rainbow tables are NTLM hash for cracking Windows Vista/Windows 7
Ophcrack is also available as Live CD distributions which automate the retrieval, decryption, and cracking of passwords from a Windows system. One Live CD distribution is available for Windows XP and lower, as well as another for Windows Vista and Windows 7. The Live CD distributions of ophcrack are built with SliTaz GNU/Linux.
Starting with version 2.3, Ophcrack also cracks NTLM hashes. This is necessary if the generation of the LM hash is disabled (this is default for Windows Vista), or if the password is longer than 14 characters (in which case the LM hash is not stored).
Starting with version 3.7.0, the source code has been moved from SourceForge to GitLab.
A list below shows Ophcrack alternatives which were either selected by us or voted for by users. You can filter this list by tags and platforms

Latest version of Ophcrack is 3.7.0 and it was released on 2017-03-30.

Ophcrack Alternatives

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    John the Ripper is a free password cracking software tool. Initially developed for the Unix operating system, it now runs on fifteen different platforms (eleven of which are architecture-specific...

    Latest version of John the Ripper is 1.8.0 and it was released on 2013-05-30.

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  • cloudvpn

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    Latest version of chntpw is 1.00 and it was released on 2014-02-01.

    Tags: Free Security Software, Operating System Distributions Bootable From Readonly Media
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    Latest version of Suricata is 3.2.2 and it was released on 2017-06-07.

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  • DenyHosts by Phil Schwartz

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    Latest version of DenyHosts is 3.1 and it was released on 2015-09-16.

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    Latest version of ArpON - ARP handler inspection is 3.0-ng and it was released on 2016-01-29.

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  • AxCrypt by Svante Seleborg

    AxCrypt is a free and open-source encryption app for Microsoft Windows, developed in Sweden by Svante Seleborg for AxCrypt AB. It can compress, delete, encrypt and edit...

    Latest version of AxCrypt is 2.1.1398.0 and it was released on 2016-06-01.

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    Tags: 2015 Software, Communication Software, Crossplatform Software, Instant Messaging Clients, Ios Software, Secure Communication, Free Security Software, Free Instant Messaging Clients, Free And Opensource Android Software
  • Clam AntiVirus by Cisco Systems

    Clam AntiVirus (ClamAV) is a free, cross-platform and open-source antivirus software toolkit able to detect many types of malicious software, including viruses. One of its main uses is on mail...

    Latest version of Clam AntiVirus is 0.99.2 and it was released on 2016-04-22.

    Tags: Antivirus Software, Antivirus Software For Linux, Cloud Applications, Crossplatform Free Software, Free Antivirus Software, Free Software Programmed In C, Free Security Software
  • ClamWin Antivirus by ClamWin Pty Ltd

    ClamWin is a free and open-source antivirus tool for Windows. It provides a graphical user interface to the Clam AntiVirus...

    Tags: Antivirus Software, Free Antivirus Software, Free Security Software, Free Software Programmed In C, Free Software Programmed In Python, Portable Software, Windows Security Software, Windowsonly Free Software
  • DiskCryptor by Anonymous ntldr <ntldr(at)diskcryptor.net>

    DiskCryptor is a free and open-source full disk encryption system for Microsoft Windows. It allows for the encryption of a PC's entire hard drive or individual partitions - including the ability to...

    Latest version of DiskCryptor is 1.1.846.118 and it was released on 2014-07-09.

    Tags: Cryptographic Software, Disk Encryption, Windows Security Software, Free Security Software
  • FreeOTFE by Sarah Dean

    FreeOTFE is a discontinued open source computer program for on-the-fly disk encryption (OTFE). On Microsoft Windows, and Windows Mobile (using FreeOTFE4PDA), it can create a virtual drive within a...

    Latest version of FreeOTFE is 5.21 and it was released on 2010-02-07.

    Tags: Cryptographic Software, Disk Encryption, Free Security Software, Windows Security Software, Windows Mobile Software, Portable Software, Free Software
  • GNU Privacy Guard by GNU Project

    GNU Privacy Guard (GnuPG or GPG) is a free software replacement for Symantec's PGP cryptographic software suite. GnuPG is compliant with RFC 4880, which is the IETF standards track specification of...

    Tags: 1999 Software, Crossplatform Software, Cryptographic Software, Free Security Software, Gnu Project Software, Linux Security Software, Openpgp, Privacy Software
  • Java Anon Proxy

    Java Anon Proxy, also known as JAP or JonDonym, is a proxy system designed to allow browsing the Web with revocable pseudonymity. It was originally developed as part of a project of the Technische...

    Latest version of Java Anon Proxy is 0.20.001 and it was released on 2016-12-15.

    Tags: Anonymity Networks, Cryptographic Software, Free Security Software, Proxy Servers, Software Programmed In Java
  • LibreSSL by The OpenBSD Project

    LibreSSL is an open-source implementation of the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols. It was forked from the OpenSSL cryptographic software library in April 2014...

    Tags: 2014 Software, C Libraries, Cryptographic Software, Free Security Software, Free Software Programmed In C, Openbsd, Software Forks, Transport Layer Security Implementation
  • MatrixSSL by PeerSec Networks, acquired by INSIDE Secure Corp.

    MatrixSSL is an Open-Source TLS/SSL implementation designed for custom applications in embedded hardware environments. The MatrixSSL library contains a full cryptographic software module that...

    Tags: Cryptographic Software, C Libraries, Free Security Software, Transport Layer Security Implementation
  • Nettle by Niels Möller

    Nettle is a cryptographic library designed to fit easily in a wide range of toolkits and applications. It began as a collection of low-level cryptography functions from lsh in 2001. Since June 2009...

    Tags: Cryptographic Software, Gnu Project Software, Free Security Software, Free Computer Libraries, Software Written Primarily In Assembly Language, Software Using The Lgpl License, Software Using The Gpl License
  • OpenPuff by Eng. Cosimo Oliboni

    OpenPuff Steganography and Watermarking, sometimes abbreviated OpenPuff or Puff, is a freeware steganography tool for Microsoft Windows created by Cosimo Oliboni and still maintained as independent...

    Latest version of OpenPuff is 4.00 and it was released on 2012-07-07.

    Tags: Steganography, Cryptographic Software, Espionage Techniques, Applications Of Cryptography, Portable Software, Free Security Software, Computer Security Software, 2004 Software
  • OpenSSH by The OpenBSD Project

    OpenSSH (also known as OpenBSD Secure Shell) is a suite of security-related network-level utilities based on the Secure Shell (SSH) protocol, which help to secure network communications via the...

    Latest version of OpenSSH is 7.5 and it was released on 2017-03-20.

    Tags: Crossplatform Free Software, Cryptographic Software, Free Networkrelated Software, Free Security Software, Openbsd, Secure Shell
  • OpenSSL by The OpenSSL Project

    OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end. It is widely used in internet...

    Tags: 1998 Software, C Libraries, Cryptographic Software, Free Security Software, Transport Layer Security Implementation
  • stunnel by Michał Trojnara

    stunnel is an open-source multi-platform application used to provide universal TLS/SSL tunneling service. stunnel can be used to provide secure encrypted connections for clients or servers that do...

    Tags: Cryptographic Software, Free Security Software, Unix Networkrelated Software, Transport Layer Security Implementation
  • Wire by Wire Swiss GmbH

    Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser clients. It uses the Internet to make...

    Tags: Crossplatform Software, Ios Software, Free And Opensource Android Software, Free Instant Messaging Clients, Instant Messaging Clients, Formerly Proprietary Software, Free Security Software, Free Voip Software, Cryptographic Software, Secure Communication, Internet Privacy Software, Swiss Brands
  • cryptlib by Peter Gutmann

    cryptlib is an open source cross-platform software security toolkit library. It is distributed under the Sleepycat License, a free software license compatible with the GNU General Public License....

    Tags: Cryptographic Software, C Libraries, Free Security Software, Crossplatform Software, Openpgp, Transport Layer Security Implementation
  • libotr

    Off-the-Record Messaging (OTR) is a cryptographic protocol that provides encryption for instant messaging conversations. OTR uses a combination of AES symmetric-key algorithm with 128 bits key...

    Latest version of libotr is 4.1.1 and it was released on 2016-03-09.

    Tags: Free Security Software, Cryptographic Protocols, Cryptographic Software, Internet Privacy Software, Crossplatform Free Software, Instant Messaging
  • Linux

    Netfilter is a framework provided by the Linux kernel that allows various networking-related operations to be implemented in the form of customized handlers. Netfilter offers various functions and...

    Tags: Firewall Software, Free Networkrelated Software, Free Security Software, Linux Kernel Features
  • uBlock Origin by Current:,Raymond Hill, Nik Rolls,Past:,Deathamns, Chris Aljoudi, Alex Vallat

    uBlock Origin (pronounced you-block ) is a free and open source, cross-platform browser extension for content-filtering, including ad-blocking. The extension is available for several browsers:...

    Tags: 2014 Software, Advertisingfree Media, Computerrelated Introductions In 2014, Firefox Addons, Firewall Software, Free Security Software, Google Chrome Extensions, Internet Privacy Software, Online Advertising
  • RainbowCrack by Zhu Shuanglei

    RainbowCrack is a computer program which generates rainbow tables to be used in password cracking. RainbowCrack differs from "conventional" brute force crackers in that it uses large pre-computed...

    Latest version of RainbowCrack is 1.61 and it was released on 2015-04-25.

    Tags: Password Cracking Software
  • L0phtCrack by Peiter Zatko (Mudge), Chris Wysopal (Weld Pond), Christien Rioux (DilDog), Rob Cheyne, Ian Melvin

    L0phtCrack is a password auditing and recovery application originally produced by Mudge from L0pht Heavy Industries. It is used to test password strength and sometimes to recover lost Microsoft...

    Tags: L0pht, Password Cracking Software
  • dsniff by Dug Song

    Dsniff is a set of password sniffing and network traffic analysis tools written by security researcher and startup founder Dug Song to parse different application protocols and extract relevant...

    Latest version of dsniff is 2.3 and it was released on 2000-12-17.

    Tags: Network Analyzers, Password Cracking Software, Free Network Management Software
  • Cain and Abel by Massimiliano Montoro

    Cain and Abel (often abbreviated to Cain) is a password recovery tool for Microsoft Windows. It can recover many kinds of passwords using methods such as network packet sniffing, cracking various...

    Latest version of Cain and Abel is 4.9.56 and it was released on 2014-04-07.

    Tags: Windowsonly Freeware, Password Cracking Software, Windows Security Software, Network Analyzers, Windows Networkrelated Software
  • Crack by Alec Muffett

    Crack is a Unix password cracking program designed to allow system administrators to locate users who may have weak passwords vulnerable to a dictionary attack. Crack was the first standalone...

    Latest version of Crack is 5.0a and it was released on June, 2000.

    Tags: Unix Securityrelated Software, Password Cracking Software, Linux Security Software