sunamo 

Export to DataTable, flipping rows into columns and vice versa, checking if all rows / columns have the same value. Generic.

Serializer and deserializer for .git config files

Wrapper aroung Utf8Json, switching between different json libraries within one interface

Retrieving folders with automatic exception catching and further processing after

For easier creation and transfer of collections between each other

Working with text, e.g. converting decoded unicode strings \{code} to one character

Converting images with math notation using mathpix.com to plain text

Managing *.ruleset files which use some IDE, FxCop, ReSharper and SonarQube

Parsing content from Wikipedia

Command generation with dotnet tool

parsing of advertisements from bazos.cz/.sk

Work with Roslyn platform

Extension method for forced conversion of \r\n to \n for use by the same applications on Windows and Linux

Geocoding and more

Generating css for each of the common display resolutions

Various types of thread pools and more

Code base for easy work with Selenium

Result classes for convert methods with ref/out to async and more

Test values for many my projects

Generate to import into Google My Maps and more