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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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

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).

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  • Avatar of CheeseBallz02 CheeseBallz02 Oct 19, 2012 at 16:45 UTC - 0 likes

    So what shall i do, get video of it? it happens alot, the cases are if you pvp with someone half way through it will stop you attacking

  • Avatar of asofold asofold Oct 19, 2012 at 16:36 UTC - 0 likes

    @MyPictures: Go

    Nope, it is as described. But uncertain if it is yawrate or just improbable. It could be yawrate adding too much penalty (then leading to improbable to alert later as a consequence).


    Latest release (1.7.2-1.7.10, approved) NoCheatPlus 3.11.1-RC-sMD5NET-b743
    (Development builds, 1.8: Jenkins)

  • Avatar of MyPictures MyPictures Oct 19, 2012 at 16:28 UTC - 0 likes

    @CheeseBallz02: Go

    hitspeed check was added way before in NC+ (3.6). Please make a good ticket and @asofold will have a look at that (he will do anyways but just to make it faster :)).


  • Avatar of CheeseBallz02 CheeseBallz02 Oct 19, 2012 at 16:09 UTC - 0 likes

    When using forcefield with nocheat, it makes it so you cant hit people, well there is problem on my server, were if you hit to fast, it will not let you hit anyone for a certain amout of time, and alot of people die because of it.

  • Avatar of asofold asofold Oct 19, 2012 at 09:54 UTC - 0 likes

    @TNTUP: Go

    Please regenerate the config rather, build 96 is pretty old on some aspects. You can hardly talk of "the default config" using a config generated like 50 builds ago.

    The passable check might have a slightly too low VL set for the first log messages to appear, it is pretty new. Level 5 seems to happen fairly often after players connect or teleport, due to the chunks not being rendered but the player already falling down (sending the moving events). Thus NCP detects them to be moving into blocks. That is not cheating of course.

    The latest dev build contain another fix for passable allowing to move out of sand for instance if it only blocks your feet.

  • Avatar of TNTUP TNTUP Oct 19, 2012 at 09:43 UTC - 0 likes

    @MyPictures: Go

    Well I got the spam thing fixed by setting noletter to 0, now I can use the " . ", I always do that with my alts for lag test. For the passable thing, its the first time I see that.

    I'm using the dev build, I know dev builds are unstable, but I prefer to use taht. I'm using the #96 config.

    Last edited Oct 19, 2012 by TNTUP


  • Avatar of MyPictures MyPictures Oct 19, 2012 at 08:54 UTC - 0 likes

    @TNTUP: Go

    Let your config.yml from NC+ regenerate, changed much since #99. Try #161 for passable, that may fix it. Also be sure that the current Minecraft has a "Block break/place out of sync!" issue.

    You can stay at #99 if you want, you decide what you want to install on your server.

    To the chat: As @asofold said, not every server owner wants players to be able to count in the chat. That actually is already some sort of small spam already, lucky NC+ gives you the possibility to config everything.

  • Avatar of TNTUP TNTUP Oct 19, 2012 at 08:07 UTC - 0 likes

    @asofold: Go

    Checked the noletter: 0, seems working now. Funny how now testing a stone tower.. I dont see that fastbreak thing, but I'm getting Passable... weird heh? Sorry for being angry at that, I was just annoyed to see those warnings for nothing. I'll keep an update for that thing.

  • Avatar of TNTUP TNTUP Oct 19, 2012 at 07:55 UTC - 0 likes

    @xDrapor: Go

    well its not my fault if I keeps getting errors by using defaults values... And why my server terrible? Without the plugin the server works good, but with it I'm getting those messages claiming my players lagging. Also I'm not a java coder so its impossible to do a new one.

    @asofold: Go

    hmh ye but I thought using out default values will prevent any such hacks.. but I think default values are a bit harsh. well gotta try what you said, but if I change fastbreak warnings, do it will prevent block lag because the plugin thinks the player hacks.

  • Avatar of xDrapor xDrapor Oct 19, 2012 at 02:53 UTC - 1 like

    @TNTUP: Go

    Comments like these disgust me. Don't assume that the latest dev build will throw more errors than ever. It works fine on my server, your server specifications are most likely, terrible, causing your players to lag, and thus throwing false positives. In addition, the devs are doing you a favour by providing you with a anti-cheat solution. If this plugin is getting worse, why not make your own? Before you claim that someone else's work is bad, check to see if you can do any better, thanks.

    PS: If you want to report a bug, or issue, I'd suggest you do it in a polite manner, and providing more details to lead to it being resolved. Your comment accomplished absolutely nothing.


    Last edited Oct 19, 2012 by xDrapor



Date created
Apr 02, 2012
Last update
Sep 21, 2014
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
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