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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 sinder33 sinder33 Apr 20, 2014 at 17:04 UTC - 0 likes

    @MyPictures: Go

    Yes Ice

  • Avatar of MyPictures MyPictures Apr 20, 2014 at 16:46 UTC - 0 likes

    @sinder33: Go

    On what blocks is he jumping on? Is that Ice?


  • Avatar of sinder33 sinder33 Apr 20, 2014 at 09:52 UTC - 0 likes

    @xbenas: Go

    No i have seen other servers doing it fine. But i haven't edited the config so that might be the reason.

    Can anyone send a good config?

    Secondly I think it's ok if it use more time catch the flyers hackers if it stop laggy people back.

    A video btw:

    None lag when i recorded and the user got no lag

    Last edited Apr 20, 2014 by sinder33
  • Avatar of asofold asofold Apr 18, 2014 at 08:43 UTC - 0 likes

    @xbenas: Go

    Could be there is some harder reason:

    • There have been rare cases with players suddenly having 12-block moves in-between on falling towards bedrock, even moved-too-quickly kicked in.
    • I also suspect the void-damage imposed velocity on the player - velocity downwards might not get counted by NCP resulting in an error.
    • Velocity upwards can in theory get invalidated due to an extreme client-lag-spike, which then might trigger vertical accounting.

    So i might always like to investigate a little bit.


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

  • Avatar of xbenas xbenas Apr 18, 2014 at 07:59 UTC - 0 likes

    @sinder33: Go

    The problem is laggy players (or your server?), not NCP. Consider downsizing the number of plugins or try to not invite US players when the server is hosted in Australia.

    Lithuanian Minecraft Server | | IP:

  • Avatar of Vollans_hl Vollans_hl Apr 18, 2014 at 04:06 UTC - 0 likes

    @weepcraftftw: Go

    Hacking? Please! *rolls eyes* I'm pretty sure you're not 'hacking'.

    If you want to cheat in Minecraft, play single player, or make your own server.

    Click for an instant 10% discount on your rental of a server when you use referral code 232652!

  • Avatar of asofold asofold Apr 17, 2014 at 20:46 UTC - 0 likes

    @sinder33: Go

    So it is jumping a long distance down? Can you post some violation messages (stating distances, if possible)?

    It is possible to deactivate the fall-damage on survivalfly violations (set the falldamage entry in the survivalfly section to false in the configuration of NCP). That would allow cheaters to teleport back to the lift-off location after falling, but would prevent the death as well. Preventing accidental falling could be done by a very smart cheat client without falling in the first place (anyway), however the problematic scenario is more like "falling a lot - then turn to freecam when within range of a chest and access the chest, then turn fly on and get teleported back up". For most servers that might not be of too much significance, after all.

  • Avatar of sinder33 sinder33 Apr 17, 2014 at 14:19 UTC - 0 likes

    I use this but got problems.

    Player jump and lag back. (Because they "Fly hack") but they don¨t

    This result they might die

  • Avatar of MyPictures MyPictures Apr 16, 2014 at 18:25 UTC - 0 likes

    @weepcraftftw: Go

    Ewww WeepCraft, can you please not spam up the client console? thx x.X

  • Avatar of asofold asofold Apr 16, 2014 at 18:22 UTC - 0 likes

    @xbenas: Go

    @asofold: Go

    Next would be the "ordinary" players... but this plugin needs all three to exist :p.


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