Date Reminder -

Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay, appointments. Run from the Startup folder, alerts.

wallabag save pages -

wallabag can save and classify articles, Read later. Take wallabag everywhere. Multi Device and Multi OS. Can be setup on a budget shared hosting.

Publii Static CMS -

Publii makes website creation simple and accessible, flexible and powerful options to build and manage blogs, portfolios, or documentation websites.

Safe Mail Tutanota -

Tutanota Email is a Free, open-source, end-to-end encrypted email software. Desktop Clients, Apps are available for most of the OS and devices.

Mojeek search engine -

Mojeek is an alternative search engine that puts the people who use it first. Mojeek Focus Dashboard for finer tuning. 

Tiny Windows Apps -

TinyApps store data and settings in their own folder. Most of these types work on Linux with Wine. The install size is around 1MB.