Hermetic Systems

Software for word and phrase counting, file & email encryption, file backup & wiping, calendar date conversion and more

November End-of-Month Sale

Until November 30th you can obtain a 50% discount on all programs on this site (perpetual user licenses only) if ordering via Comecero. To get this discount, enter half‑price‑today as the discount code at the Comecero order form (and click on 'Apply').

Hermetic Systems (in business for 20 years) is the developer and publisher of the software shown below. These programs are all hand‑crafted for functionality and ease‑of‑use. They run with all versions of Windows, and on Macs with an emulator such as "Parallels". All of them are free to download (as trial versions).

Click on a program title for further information, or click on a thumbnail image for full‑size, then click the back arrow in your browser to return to this page.


Link Checker for Local Files

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MD5 File and Folder Comparator

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Prime Factors

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Radian-Degree Calculator

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You can purchase a user license by using credit/debit card, amazon pay or bitcoin.

This page last modified
on November 29, 2020.