PopChar - The character map that works!
WinCompose - WinCompose supports the standard Compose file format.
Event Viewer - Get help, support, and tutorials for Windows products—Windows 10, Windows 8.1, Windows 7, and Windows 10 Mobile.
Gucharmap - Open source character map for the GNOME desktop environment.
SymbSearch - A tool for searching unicode-symbols and copying it to the clipboard.
Font Viewer - Font Viewer is an application which does exactly that - it views fonts!