Tested with Spigot, PaperSpigot and TacoSpigot.Implemented cache to benefit performance.Change your skin - Every skin which was uploaded to Mojang is allowed.Nearly no mojang rate limits due caching.Works on offline mode (can restore skins) and online mode servers.Click on the left side on the build to download it or remove 'changes' part of the URL to get always the latest. Instead you can use development builds that are build directly after a change. This plugin also supports newer Minecraft versions and is still updated. If you like the project, leave a star on GitHub and contribute there. If you want to, this plugin can set this standard skin for all players who still have the default steve or alex skin. Moreover it's possible to set a custom standard skin.

But you can choose every skin that another minecraft user currently has or had.

These skins have to be downloaded from Mojang, because Minecraft clients only accept from Mojang signed skins. This plugin allows your players to change their skins by command.

Minecraft skin changer mod