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Password Tech 3.5.1

Password Tech

Password Tech is a powerful password generator capable of generating large amounts of cryptographically-secure passwords, pronounceable passwords, pattern-based passwords, passphrases composed of words, and scripted passwords. Passwords can be stored in encrypted databases along with user names, URLs, notes, etc. Password Tech provides lots of options to customize passwords to the users' various needs, and individual scripting with Lua gives full control over the process of password generation. Text encryption is also supported.

Program features:

  • Password generation based on a cryptographically secure pseudo-random number generator (combination of SHA-256 and AES or ChaCha20)
  • Entropy gathering by collecting volatile system parameters and measuring time intervals between user keystrokes, mouse movements, and mouse clicks
  • Password manager functionality through databases encrypted with a master password, containing passwords associated with a title, user name, URL, etc.
  • Generation of pass phrases composed of words from a word list
  • Pattern-based password generation (formatted passwords) provides nearly endless possibilities to customize passwords to the user’s needs
  • Scripting functionality (Lua) with a programming interface to PwTech allows full control over password generation
  • Generation of phonetic (pronounceable) passwords based on language-specific trigram (3-letter) frequencies
  • Numerous password options for various purposes
  • Generation of large amounts of passwords at once
  • “Password hasher” functionality
  • Secure text encryption (AES with 256-bit key)
  • Multilingual support
  • Full Unicode Support
  • Runs on Microsoft Windows versions beginning with XP, including Vista, 7, 8, and 10 (32/64-bit)

Password Tech 3.5.1 changelog:

New features

  • New option "Load the following profile on startup" in Configuration | General

Changes and improvements

  • Maximum number of passwords that can be generated at once extended to 1 trillion (1,000,000,000,000) (note that larger amounts >~10**8 can only be stored in files since the number of Unicode characters displayed in the password list window is limited to 500 million/2 billion in the 32/64-bit version)
  • Suffixes "K", "M", "G"/"B" can be specified in the "Multiple passwords" box to generate multiples of thousands, millions, and billions, respectively
  • Passwords are generated asynchronously in a separate thread, so that progress window stays responsive
  • Include characters / character sets with different frequencies: Now compatible with password option "Each character must occur only once"
  • Password manager: When changing number of KDF rounds via File | Database Settings, the process can be canceled after 1 sec (in case the number of rounds has accidentally been set too high)


  • Launching PwTech on system startup caused an error (configuration file and/or randseed.dat file not found)
  • Fixed potential buffer overflows

Download: Password Tech 3.5.1 | 12.4 MB (Open Source)
Download: Password Tech 64-bit | Password Tech 32-bit
Links: Password Tech Homepage | Sourceforge Project Page

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