Detect and fight the exploitation of various flaws/bugs in Minecraft!

Features Permissions Commands Configuration Jenkins


NoCheatPlus attempts to prevent cheat clients from exploiting weaknesses of Minecraft or its protocol, making your server more safe. Checks cover a wide range of issues including flying and speeding, fighting hacks, fast block breaking and nukers, inventory hacks, chat spam and other types of malicious behaviour. For a more complete list have a look at the Features Page.

NoCheatPlus puts emphasis on configurability and allows you to customize actions that are carried out when a player fails a check (e.g. silent cancelling, executing commands, just logging). Bypass permissions allow to control what check to apply for which players, all checks can be deactivated in the configuration, also having the option for world-specific configuration files. Many checks allow more detailed configuration to adjust sensitivity.

Certainly NoCheatPlus is not a magical bullet, it uses a lot of heuristics and even guessing, so you will encounter false positives here and there and also not catch every single violation. Example video of how NoCheatPlus blocks cheats (outdated plugin version).

NoCheatPlus was introduced by NeatMonster, building on the code base of NoCheat by Evenprime.

The following plugins might be useful to have a look at.


Allows NoCheatPlus to activate packet-level checks, covering a range of exploits that can't be monitored using ordinary means. Since roughly Minecraft 1.7.10, the fight.speed check can't work as expected anymore, due to changes in CraftBukkit. With ProtocolLib this can be repaired.

CompatNoCheatPlus (cncp)

Make plugins like mcMMO, Citizens, MagicSpells or MachinaCraft more compatbile with NoCheatPlus. Not all existing plugins are covered (yet), but you can leave a note or create an issue/ticket request for cncp.


Orebfuscator fights all sorts of X-ray-hacks by altering the map information that is sent to the players, such that they have to mine blocks to actually reveal what is behind. Virtually a "must have". (Latest versions of Spigot contain features of Orebfuscator.)

Downloads and History of Changes


Documentation Resources

Contact us

  • Quick questions can be asked on this page,
    or on IRC (Server: | Default-Port: 6667 | SSL-Port: 6697 | Channel: #nocheat | Web client: WebIRC)
  • For real issues or feature requests please create a new issue/ticket or add to an existing issue/ticket.
  • To send information that is not to be seen by all, you can also reach us by PM to @asofold and @MyPictures. @IceAP (IRC: ICE) will also help or redirect the conversation. Please do not contact the user 'NoCheatPlus', it is for administrative purposes only and will likely not be answered in time. Keep to BukkitDev and GitHub for support, do not trust users on other forums or websites, also not if their nick names are the same as NCP staff on BukkitDev.

Please always state the output of the "ncp version" command to let us know versions in use (users of cncp also the "cncp" command).

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  • Avatar of asofold asofold Feb 16, 2014 at 08:32 UTC - 0 likes

    @Bronzeteufel: Go

    Please continue adding to Ticket 633, so that we can keep track of details.

    We would appreciate you adding a comment with the output of "ncp version" and if this always happened or often or randomly with tile entities, also how many times you tested (roughly).


    Latest beta release (1.8.x, this site) 3.13.0-BETA-sMD5NET-b878
    (Development builds, 1.8.x: Jenkins)

  • Avatar of Bronzeteufel Bronzeteufel Feb 15, 2014 at 22:33 UTC - 0 likes

    @asofold: Yes, tile entities. There are some Commandblocks and a lot of chests at spawn. Enabling ncp takes 2 minutes + 1 minute for "Post-enable running". Just by accident I moved the world spawn in the level.dat to an empty swamp .. and ncp started within 3 secs .. that was very freaky. I noticed the same issue with Multiverse Portals. The only solution for me is to move the world spawn to an area with no tile entities. I'm running the latest spigot dev build with a good CPU.

    edit: There's the same issue if the world spawn is in another place with much tile entities. So .. it's not because of a corrupted chunk. ;)

    Last edited Feb 15, 2014 by Bronzeteufel
  • Avatar of asofold asofold Feb 15, 2014 at 20:34 UTC - 0 likes

    @EricPickup: Go

    Are you sure the player in the video did not have a fastbreak hack or some modified client?

  • Avatar of EricPickup EricPickup Feb 15, 2014 at 19:24 UTC - 0 likes

    The bvisible check seems to be having a lot of issues with false positives. Check out this video, I recorded the guy with the logs in the chat: This is happening randomly to most of my players.

    My servers..


    Check out ftbastler's hunger games plugin here!

  • Avatar of asofold asofold Feb 15, 2014 at 19:18 UTC - 0 likes

    @Bronzeteufel: Go

    Any more details? I am not sure how exactly tiles (tile entities?) are related to the startup time of NCP, but details would be interesting...

  • Avatar of Bronzeteufel Bronzeteufel Feb 15, 2014 at 18:46 UTC - 0 likes

    ncp starts extrem slowly (2 min) if there were 1k+ tiles in the spawnchunks .. any solutions? :(

    Last edited Feb 15, 2014 by Bronzeteufel
  • Avatar of asofold asofold Feb 15, 2014 at 17:57 UTC - 0 likes

    @lIndependentl: Go

    Maybe you have bypass-permsisions (e.g. wildcards '*'), or you are op?

  • Avatar of lIndependentl lIndependentl Feb 15, 2014 at 17:48 UTC - 0 likes

    Doesn't work, i used my minecraft with hack, and i can fly, it kicks me from server, not from the plugin. Why?

    Sincerely, Joan.

  • Avatar of asofold asofold Feb 15, 2014 at 16:56 UTC - 0 likes

    @legofreak1999: Go

    Just remove the template questions and fill in what i asked below, we will ask back if we need to clarify anything.

  • Avatar of legofreak1999 legofreak1999 Feb 15, 2014 at 16:15 UTC - 0 likes

    i dont understand what they are asking in the tiket


Date created
Apr 02, 2012
Last update
Jan 31, 2016
Development stage
GNU General Public License version 3 (GPLv3)
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