All Hermetic Systems Software ![]()
This page displays thumbnail images and descriptions for 19 of our programs (randomly ordered). Click on a title or a thumbnail image for more information. See also Software Ordered by Category
Click to enlarge
Hermetic Color Picker For finding decimal and hexadecimal values for selected colors.
Click to enlarge
Prime Number Spiral Software for exploring the Prime Number Spiral (a.k.a. the Ulam Spiral), which is formed by marking the prime numbers in a spiral arrangement of the natural numbers. Bilingual: English and German
Click to enlarge
Lunar Calendars and Eclipse Finder A program to search for eclipses (lunar, solar, total, annular and partial), 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 various lunar calendars: Meyer-Palmen Solilunar, Hermetic Lunar Week, etc.
Click to enlarge
Factorizer 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.
Click to enlarge
Hermetic Stego This program allows you to encrypt and hide a file of any size in one or more BMP image files, with or without the use of a user-specified stego/encryption key, so that the presence of the hidden file is undetectable, even by forensic software using statistical methods.
Click to enlarge
Hermetic Sitemap Generator Scans a copy of your website on your hard disk and generates an XML Sitemap. Automatic setting of the 'change-frequency' and 'priority' tags is supported.
Click to enlarge
Data Destroyer A program for secure file deletion which destroys (or purges, by overwriting many times) data in multiple files and multiple folders on ZIP drive, hard disk or memory stick so that the data cannot be recovered. Single-file or batch-mode operation. User-specifiable purge type. Estimates given of time required for large purge operation.
Click to enlarge
Equinoxes, Solstices and Cross-Quarter Days Software to calculate accurate dates and times for equinoxes, solstices and the Celtic cross-quarter days. The cross-quarter days are those midway between the equinoxes and solstices.
Click to enlarge
Easy Date Converter Adds a number of days or months to a date, calculates the number of days between two dates (with or without weekend days), and converts among Common Era (Gregorian) dates, Julian dates, ISO 8601 Week dates, Hermetic Leap Week dates, Julian day numbers and day-in-year dates of the form yyyy-ddd. Bilingual: English and German
Click to enlarge
Cryptosystem ME6 A program for the encryption and decryption of single or multiple files for secure storage or transmission. It uses a symmetric key encryption method with a 500-bit key for security, and has numerous safeguards against user error.
Click to enlarge
Index Files Search Words For indexing and searching HTML files, text files or files of a similar kind on CD, a hard disk, etc. It indexes every word in every file, and any file containing a particular set of words (or any of those words, or an exact phrase) can quickly be found by searching for those words.
Click to enlarge
Radian-Degree Calculator For converting radians to and from degrees, minutes and seconds, and for performing addition and subtraction of angles (modulo 2pi). Has options for rounding degree values to minutes and for output of degree values in decimal.
Click to enlarge
Easy Graphics File Converter Software to convert from GIF, JPG, PNG and BMP graphics files to JPG, PNG and BMP files. Allows single or multiple (batch) file conversion. Can convert to JPGs over a range of quality/compression values for optimization. Converted files can be displayed in your browser.
Click to enlarge
Keywords Meta Tag Generator A web authoring tool which acts on an HTML document, counting the number of occurrences of words and how they are used, and produces an appropriate keywords meta tag for the document (which can be automatically inserted into the document).
Click to enlarge
Easy HTML Construction Kit This program includes an interactive TABLE generator which handles COLSPAN and ROWSPAN, and provides an easy way to create HTML code from lists and tables in textfiles, and to convert data in textfiles to finished HTML documents.
Click to enlarge
Hermetic Word Frequency Counter This software scans a file, or text on the clipboard, and counts the number of occurrences of the different words. The words which are found and displayed can be ordered alphabetically or by frequency. Supports non-English text.
Click to enlarge
Chinese Calendrics A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find (among other things) lunar new year's day and leap months for any year in the Chinese Calendar.
Click to enlarge
Easy Email Encryption Lite A program to encrypt a message to send by email, and to decrypt encrypted messages received. Using this ensures that email is encrypted before it is transmitted to your mail server and remains encrypted until after downloading by the recipient. Bilingual: English and German.
Click to enlarge
Julian-Gregorian-Dee Date Calculator To convert between Julian, Gregorian, Dee and Dee-Cecil calendar dates in various formats, to add/subtract a number of days, weeks, months and years to/from a given date, and to calculate vernal equinoxes using either mean or apparent solar time.
Hermetic Systems Home Page