Windows software for word and phrase counting,
solar and lunar calendar conversion, and more
The software described on this website runs on Windows desktops and laptops (including Win11) and also on Macs with an emulator. For each program below, clicking on the title takes you to a page with a screenshot and a description of what it does and what it is for. This software was formerly available only after payment for a user license. It has now been converted to freeware. The titles of the programs are:
| Prime Factors | Hermetic Word Frequency Counter |
| Easy Date Converter | Hermetic Word Frequency Counter Advanced |
| BCE‑BC‑AD‑CE Converter | Equinoxes, Solstices and Cross‑Quarter Days |
| MD5 File Comparison | Phrase Frequency Counter Advanced |
| Date‑Time Calculator | Eclipses, Moon Phases and Seasons |
| Celtic Festival Dates | Julian‑Gregorian‑Dee Date Calculator |
| Search KWIK Concordance | Lunar Calendars and Eclipse Finder |
| Cryptosystem ME6 | The Chinese Calendar: Dates of New Years, Dark Moons and Solar Terms |
Peter J. Meyer is the author of this software and website. He welcomes comments, which may be sent to support@hermetic.ch
You can read the description and user manual for each program by clicking on its title (below). Please see the User License Terms.
This website also has many articles about calendars; see Calendars Old and New.
