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

Main 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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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.

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 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".

Downloads and History of Changes

  • Download officially approved versions on the Files page at BukkitDev.
  • Development builds have been moved over to the Jenkins at EcoCityCraft.
  • Do not download from any other source, do not use jars other people send you.
  • Changes by build number can be examined in the Jenkins changes list.
  • All commits can be seen in the GitHub commit history.
  • Plugin statistics are no longer reported to


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 ticket or add to an existing ticket.
  • To send information that is not to be seen by all, you can also reach us by PM to @asofold and @MyPictures. 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).


Thanks to all supporters (hall of fame pending) and past donators!
RockServer: Big thanks for providing us with a virtual Server!
Our work for your enjoyment

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  • Avatar of MonarchServer MonarchServer Feb 21, 2014 at 21:37 UTC - 0 likes

    Thanks for update

  • Avatar of Nikkolo94 Nikkolo94 Feb 21, 2014 at 20:42 UTC - 0 likes

    <<reply 2041829>>

    BungeeCord: #846
    Spigot: 1312
    NCP+: 3.10.8-RC-sMD5NET-b664
    MCAccess: 1.7.2 / CB2922-DEV

    NCP: Displaying Ibbux97's violations...
    NCP: [17:34:41] moving.passable VL 24  (n24a1m1)
    NCP: [17:34:37] moving.survivalfly VL 1105  (n13a85m502)
    NCP: [17:33:18] fight.direction VL 2  (n2a1m1)
    NCP: [17:27:20] blockinteract.visible VL 2  (n2a1m1)
    NCP: [17:23:36] fight.critical VL 0  (n1a0m0)

    Sorry for my shitty english :P

  • Avatar of MyPictures MyPictures Feb 21, 2014 at 18:04 UTC - 0 likes

    @Nikkolo94: Go

    do /ncp info <AffectedPlayerName here> and post the output. We also need your NC+ and CB/Spigot version and if you use Bungee then also bungees version.

    @StreetkillnHD: Go

    nocheatplus.checks more infos here:


  • Avatar of Nikkolo94 Nikkolo94 Feb 21, 2014 at 17:29 UTC - 0 likes

    hey :)

    i would like to know if the bug appear on this video if maybe is caused by NCP, the player is unable to attack, and it happen a lot of time on my server

  • Avatar of asofold asofold Feb 21, 2014 at 11:24 UTC - 0 likes

    @StreetkillnHD: Go

    This means that the player clicked on or interacted with some block, without actually being able to see it, because something is in between. There are rare cases of false positives (short edge of door), and there are issues with latency (e.g. players using a sign-based lift with multiple clicks). It can also happen that with very fast block breaking the client does not receive or process a cancelled block break and will assume there is no block somewhere (ghost block), in this case they might try to break the block behind which is not accessible.

    Maybe the log messages are not configured right by default, because they lead to too frequent messages, you could just remove the log action from the actions list for blockinteract.visible .


    Latest Release (1.7.2/.4/.5, approved): NoCheatPlus 3.10.9-RC-sMD5NET-b673 (Development builds, + MC 1.7.5: Jenkins)

  • Avatar of CrueIdog CrueIdog Feb 21, 2014 at 07:21 UTC - 0 likes

    Is there a permission node that contains all the commands like nocheatplus* which would just let the group bypass nocheatplus?

  • Avatar of StreetkillnHD StreetkillnHD Feb 21, 2014 at 05:08 UTC - 0 likes


  • Avatar of asofold asofold Feb 20, 2014 at 10:09 UTC - 0 likes

    @eHealings: Go

    What is a lot? 3 out of 500, 20 times each?

    Speed II is some information we can use in order to try to reproduce it. Can you fill in a ticket for "set back with speed II" or so, stating "ncp version" output?

    @WFloydBoy: Go

    That's also worth a ticket, as this is a standard problem.

    NCP would also cancel chat until captcha is input. Because NCP is using chat to input captcha, this might conflict with muting-features of other plugins.

    You can not do anything about it except for disabling captcha or not muting people (impracticable).

    I can think of three "solutions".

    • NCP adds a /captcha command
    • NCP adds muting functionality
    • We adjust captcha to also process cancelled events.

    I think the last one could be a solution.

  • Avatar of WFloydBoy WFloydBoy Feb 20, 2014 at 02:25 UTC - 0 likes

    This question might sound stupid but what do you recommend I do with players who get muted (Through Essentials) and have the captcha to type out? They are unable to type anything but the captcha because of NCP but essentials doesn't allow the user to type the captcha. Any fix besides disabling the option to have captcha's?

  • Avatar of eHealings eHealings Feb 20, 2014 at 02:13 UTC - 0 likes


    A lot of players have been reporting to me that they are getting "pulled back" in combat. They are stating to me that they are chasing someone with a speed II on and they periodically get pulled back a few blocks every couple seconds. I believe that this may be NoCheat thinking that they are going to fast. Any way you could fix this?


Date created
Apr 02, 2012
Last update
Mar 16, 2014
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
Recent files