Hi all,
I made an extension to @Elfocrash's L2ACP for L2J servers so that it can work with L2OFF servers too. All the core features are there, some minor ones are missing.
For the feature list check eflocrash's topic share, I would just copy & paste it here anyway:
GIthub repository of my fork with the L2OFF functionality implemented: https://github.com/pjasicek/L2ACP-Web
Video of how it works on L2OFF server:
Configuration steps are described on the github page's README. If you want to use this, please get familiar with using and deploying ASP.NET applications.
If you encounter any issues, feel free to write them down or open an issue on github.
Enjoy.