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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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

You must login to post a comment. Don't have an account? Register to get one!

  • Avatar of KevinEssence KevinEssence Apr 27, 2015 at 20:58 UTC - 0 likes

    Anyone have some good ncp+ settings? It seems to cause so much lag my server nowadays.

    Server owner at


  • Avatar of MineCraftMyph MineCraftMyph Apr 25, 2015 at 12:21 UTC - 0 likes

    @asofold: Go

    Haha can't believe I forgot about the indentations, thanks for your help.

  • Avatar of asofold asofold Apr 24, 2015 at 22:37 UTC - 0 likes

    @MineCraftMyph: Go

    The config you pasted does not seem to have indented the lines to actually display - please indent those by 2 spaces...

    Edit: Admittedly YAML (including the variant the Bukkit project has bee using isn't perfect, but please check with the content-lines indented.

    Last edited Apr 24, 2015 by asofold


    Latest beta release (+ 1.8.3, approved) NoCheatPlus 3.12.0-RC-sASO-b813
    (Development builds, 1.8: Jenkins)

  • Avatar of MineCraftMyph MineCraftMyph Apr 24, 2015 at 20:18 UTC - 0 likes

    @asofold: Go

    Nope Multiple chat lines aren't supported through all messages, including 'question'.

    1. Config
    2. Error
  • Avatar of asofold asofold Apr 23, 2015 at 13:25 UTC - 0 likes

    @MineCraftMyph: Go

    1. Seems to be a good option, actually. 2. If NCP kicks them you probably have some kind of log entries about the kick? What's the kick message?

    Concerning YAML, NCP does a multi-line comment like this:

          active: true
          level: 67
          message: |-
            &e>>> &cPlease &eslow down &cchat, &eyou might get kicked &cfor spam.

    Note the |- after message and that the following lines are indented relative to the "message: |-" part. I am not sure where to place the ' or " though , if those are really needed (i'd assume you can do without '/" with that message).

  • Avatar of MineCraftMyph MineCraftMyph Apr 23, 2015 at 11:16 UTC - 0 likes

    @asofold: Go

    1. Mind adding the captcha command.
    2. Players are kicked due to lag, which part of the NCP config is responsible?
  • Avatar of asofold asofold Apr 22, 2015 at 09:16 UTC - 0 likes

    @MineCraftMyph: Go

    Multiple lines are in general supported, like with the the default configuration and the chat warning message. I am not 100% sure what you are trying to achieve, how about posting (or send a pm with) a link to a paste of your configuration? Special characters might pose a problem, but i can't tell what you have been trying to add there.

    Captcha can't be forced with a command. Once activated it will appear after login and on chat.text/chat.commands violations. We might add more configurability, but that'll depend on demand.

  • Avatar of MineCraftMyph MineCraftMyph Apr 22, 2015 at 00:46 UTC - 0 likes

    @asofold: Go

    No that doesn't work, it does not support multiple lines. Please implement this.

    1. Which command is used to make a player enter the captcha? /npc captcha <player> ??
    Last edited Apr 22, 2015 by MineCraftMyph
  • Avatar of asofold asofold Apr 20, 2015 at 09:43 UTC - 0 likes

    @MineCraftMyph: Go

    @asofold: Go

    Sorry i wasn't being too descriptive here.

    If you look at the default config, there is a multi line entry in the chat.warning section, not using any double ' or ", apparently it's indented. If unsure, how about just posting the config or the part of the config?

  • Avatar of asofold asofold Apr 18, 2015 at 22:13 UTC - 0 likes

    @MineCraftMyph: Go

    Ah in YAML, at least the thing Bukkit/CraftBukkit used to be using, you would do ''LINE1\nLINE2'' unless i am mistaken.


Date created
Apr 02, 2012
Last update
Mar 21, 2015
Development stage
GNU General Public License version 3 (GPLv3)
Curse link
Recent files