EditPad™ Classic

https://www.editpadclassic.com/

Developer: Just Great Software (JGsoft)
Description: The text editor that all others were based on (IMO). A small but powerful text editor and Notepad replacement. Compact single executable with a tabbed interface, unlimited file size support, ANSI/OEM conversion, system tray integration, and cross-platform file support (Unix/Mac). EditPad Classic is postcardware - free to use after sending the developer a postcard. Succeeded by EditPad Lite and EditPad Pro.