PlayerDataManipulator, short PDM, is a plugin that allows server administrators to better manage players' internal data.
The plugin allows you to:

• Open and edit almost any of the players' inventory
• Teleport the player across dimension
• Change any of the players' data

Note:
All the above-mentioned features work with offline players as well.
A web editor can be used to make the process of manipulating the players' data as painless as possible.
Additionally, these features should work on modded servers as well, as long as the config.yml file is configured correctly.

The plugin is especially well-suited for servers and/or players' who easily and often corrupt their own data. These can now be easily handled in-game using the web editor or without having access to internal files of the server.

See the GitHub repo for more information and some god-awful code.
Please report any bugs or issues you find on the GitHub page.
Enjoy and I hope it helps.