This website presents software which has been hand‑crafted by the developer for functionality and usefulness or intrinsic interest. These programs run with all versions of Windows (including Win10), and on Macs with an emulator. They are all free to download (as trial versions). Click on a program title (e.g., BCE‑BC‑AD‑CE Converter) for information about pricing, what it is for, how to use it, etc. Or click on a thumbnail image for full‑size (then click the back arrow in your browser to return to this page).
Hermetic Word Frequency Counter
Hermetic Word Frequency Counter Advanced
Phrase Frequency Counter Advanced
Search KWIC Concordance
Celtic Festivals and Cross Quarter Dates
Easy Date Converter
Eclipses, Moon Phases and Seasons
Equinoxes, Solstices and Cross‑Quarter Days
Julian‑Gregorian‑Dee Date Calculator
Lunar Calendars and Eclipse Finder
C Code to HTML Converter
File Backup Lite
Five Cellular Automata
Email Encryption End‑to‑End
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In case you were wondering, the "ch" in "hermetic.ch" is short for "Confederation Helvetica", that is, "Switzerland".