The software described on this website runs on Windows desktops and laptops. (It does not run on Macs or smartphones.) For each program below, clicking on the title takes you to a page with a short description of what it does and what it is for, and a link to the user manual (for which click on the title there).
Hermetic Word Frequency Counter ![]() |
Hermetic Word Frequency Counter Advanced ![]() |
Phrase Frequency Counter Advanced ![]() |
Search KWIC Concordance ![]() |
MD5 File Comparison ![]() |
Lunar Calendars and Eclipse Finder ![]() |
The Chinese Calendar: Dates of New Years, Dark Moons and Solar Terms ![]() |
Easy Date Converter ![]() |
Celtic Festivals and Cross Quarter Dates ![]() |
BCE‑BC‑AD‑CE Converter ![]() |
Prime Factors ![]() |
Cryptosystem ME6 ![]() |
Email Encryption End‑to‑End ![]() |
Five Cellular Automata ![]() |
In case you were wondering,
the "ch" in "hermetic.ch" is
short for "Confederation Helvetica",
that is, "Switzerland".