There are 2 repositories under revshell topic.
Hosted Reverse Shell generator with a ton of functionality. -- (Great for CTFs)
CLI app to generate shells from revshells.com.
The source code and instructions for the keylogger project between Brian Mancil, Rob Peeples, Jose Santiago, and Ricky Rodriguez through Fullstack Academy
Easy reverse shell generator in python
RevShell es una herramienta que imprime el código de un shell inversa de distintas maneras.