Hermetic Systems

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Products by Hermetic Systems

A disk wipe program which overwrites many times data in the free space on a disk and in all files and folders (except selected top-level folders) so that the data cannot be recovered. Purge type is specifiable. Provides an estimate of time needed.


Updated: 2010-01-17

This software is for indexing text files, HTML files, XML files or files of a similar type in multiple folders and their subfolders to allow subsequent quick searching of those files.


Updated: 2010-01-16

This software scans a text file, or multiple text files files, and counts the number of occurrences of different words or specified phrases. The text can be non-English. The words/phrases can be displayed alphabetically or by frequency.


Updated: 2010-01-09

Adds a number of days to a date, gets the number of days between dates, and converts among dates in various calendars: Gregorian, Julian, ISO 8601 and more. Supports batch processing and has a built-in programming language for custom calculations.


Updated: 2009-12-30

For indexing and searching a single text file, HTML file, XML file or similar file on a hard disk or similar storage medium. Any word or all words in a set of words, or an exact phrase, can be searched for. Results displayed in web browser.


Updated: 2009-12-19

This program is for detecting changes to files in a folder, and for detecting additions or deletions of files in a folder. Multiple folders can be set up to be monitored. Optionally files in all subfolders of a folder can also be monitored.


Updated: 2009-12-18

The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.


Updated: 2009-12-15

MD5 File and Folder Comparator is for comparing files as to whether or not they are identical in content. A pair of files may be compared, or all files in two subfolders (optionally including files in their subfolders).


Updated: 2009-12-09

Easy Email Encryption Lite is for sending and receiving encrypted email messages (up to 34 KB) and is designed to be both secure and easy to use. It uses a symmetric key method. It works with any email program. Bilingual, English/German.


Updated: 2009-11-18

Windows software for encryption and decryption of single files or multiple files in a single operation for secure storage or secure transmission. It uses a 500-bit key for security, and has features designed to minimize the chances of user error.


Updated: 2009-11-18

A steganography program which allows you to encrypt and hide a file of any size in BMP image files, with or without the use of a stego key, so that the presence of the hidden file is undetectable, even by software using statistical methods.


Updated: 2009-11-17

A program to search for eclipses (lunar, solar, total, annular and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in four lunar calendars.


Updated: 2009-11-07

Software for exploring five cellular automata: q-state Life (a generalization of Conway's Life), the Belousov-Zhabotinsky Reaction, Togetherness, Viral Replication and Diffusion-Limited Aggregation.


Updated: 2009-11-05

Converts from GIF, JPG, PNG and BMP graphics files to JPG, PNG and BMP files. Allows single or multiple file conversion. Can convert to JPGs over a range of quality/compression values for optimization. Converted files displayed in your browser.


Updated: 2009-11-04

This software scans a file, or text on the clipboard, and counts the number of occurrences of different words. The text can be in a language other than English. The words which are found and displayed can be ordered alphabetically or by frequency.


Updated: 2009-10-30

A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.


Updated: 2009-10-29

Windows software to back up files in all (or selected) folders and their subfolders; all files, or just new and modified files, can be backed up. Can delete obsolete backup files.


Updated: 2009-08-10