Thunderpad is described as '(formerly Textpad) is a simple, general-purpose and cross-platform text editor written in C++ using the Qt libraries. Thunderpad aims to be faster and more lightweight than most text editors, but as useful as them' and is a Text Editor in the development category. There are more than 100 alternatives to Thunderpad for a variety of platforms, including Windows, Mac, Linux, BSD and Flathub apps. The best Thunderpad alternative is Notepad++, which is both free and Open Source. Other great apps like Thunderpad are Visual Studio Code, VSCodium, Vim and Eclipse.