Windows software for word and phrase counting, file and email encryption,
secure file deletion, calendar date conversion and more

Hermetic Systems publishes twenty items of Windows software in diverse fields — those above plus others. This website also has many articles about calendars, cryptography and other topics. Titles of our programs are shown below (click on any for the full description, user manual and how to order).

Word and Phrase Counting
Hermetic Word Frequency Counter
Scans a docx or text/HTML/XML file and counts the number of occurrences of different words
Hermetic Word Frequency Counter Advanced Version
Does almost the same for multiple files and folders and also counts phrases; supports pattern-matching and non-English text
Security Software:
Encryption, Deletion
and Backup
Cryptosystem ME6
A program for the encryption and decryption of single or multiple files
Email Encryption

Encrypts messages to send by email and decrypts encrypted messages
Stego PNG
Hides a data file of any type in a PNG or BMP image file
Backup Modified Files
Backs up files in a folder and selected subfolders of that folder
Data Destroyer
Destroys, by multiple overwrites, data in multiple files and folders
Recycle Bin Wiper
Wipes deleted files in the Recycle Bin by multiple overwrites
Date Conversion
and other
Calendar Software
Lunar Calendars and
Eclipse Finder

Searches for eclipses, calculates Moon phases, converts lunar calendar dates
Chinese Calendrics
Converts between dates in various Chinese calendars and dates in Western calendars
Date Calculator

Converts between Julian, Gregorian, Dee and Dee-Cecil calendar dates
Easy Date Converter
Does date conversion and date arithmetic for various Western calendars
Equinoxes, Solstices and Cross-Quarter Days
Calculates dates/times of vernal/autumnal equinoxes, summer/winter solstices and Celtic cross-quarter days
Website Tools
Keywords Meta Tag Generator
Counts occurrences of words in an HTML document and generates a keywords meta tag
Keywords Meta Tag Generator Advanced Version
Does the same for multiple HTML documents in multiple folders
HTML Table Creator Tool
An interactive TABLE generator which handles COLSPAN and ROWSPAN
Easy Graphics File Converter
Converts GIF/JPG/PNG/BMP graphics files to JPG/PNG/BMP files; helps optimization of JPG images
Mathematical Software
Finds prime numbers and pairs of primes, factors numbers into their prime constituents
Prime Number Spiral
Software for exploring the Prime Number Spiral
Five Cellular Automata
q-state Life, the Belousov-Zhabotinsky Reaction, Diffusion-Limited Aggregation and more

Our software is categorized according to the buttons at top left. Click on any button to get further information about programs in that category, or click on a title in the table above to go directly to the product description page.

These programs run under all Western versions of Windows from Windows XP to Windows 8 (they can also be run on Macs which can run Windows). All are completely virus-free (as attested by VirusTotal). The free trial versions can be made fully-functional by means of an activation key after purchase of a user license. The key can be sent immediately upon purchase (or can be obtained immediately after purchase), so there's no waiting required. For some programs you can purchase either a 3-month license, a 1-year license or a perpetual license (and site licenses are available for some). Updates to new versions are free, as is tech support for the duration of the user license.

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I do believe that Hermetic Systems is the GOLD Standard in customer service and performance!Denise Ventura, January 16, 2008

Website contents © Hermetic Systems 2015