[DarrenDev]

I wouldn't say I'm proud of making it, but it's something I built 15 years ago and still use many times a day -- every day.

AtoZ Notebook - Encrypted data storage in A-Z format.

http://www.atoznotebook.com/help.html

I built it for myself as I hated the limitations of password managers when what I really wanted was a long form "sensitive data" manager.

I built version 1 in 2005 and rewrote it as a commercial app in 2011 -- sold about 100 copies and then discontinued it as I didn't want to be in the password manager business. The encryption was sufficient but not good enough for an app used by others to store their passwords.

Here's a screenshot: http://www.atoznotebook.com/images/atoz-mainwindow.png