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

Features Permissions Commands Configuration Jenkins

NOW! With Minecraft 1.10 support! (on Jenkins)

Quick overview: NCP by version of Minecraft
(Links may lead to downloads not approved by BukkitDev staff, use at your own risk.)
GitHub Issue for 1.10 progress (overview)


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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 Schneidertm Schneidertm Oct 15, 2015 at 21:59 UTC - 0 likes


    could you please tell me the permissions node to bypass the hidden commands? (Config -> protection.plugins.hide.unknowncommand)

    Thanks a lot!

  • Avatar of asofold asofold Oct 15, 2015 at 10:38 UTC - 0 likes

    @Chris_GSPvP: Go

    What is the "newest" ? A development build?

    NCP doesn't do anything with bubbles. It may be a cross-plugin thing.

    Why are bubbles there in the first place? Have there been players with potion effects, do plugins add those? Do you have plugins adding (particle-) effects ?

    What else did you update (client, server, plugins)?

    Last edited Oct 15, 2015 by asofold


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

  • Avatar of Chris_GSPvP Chris_GSPvP Oct 15, 2015 at 07:16 UTC - 0 likes

    Since I updated to the newest NoCheatPlus I get this:

  • Avatar of asofold asofold Oct 14, 2015 at 10:30 UTC - 0 likes

    @Bobcat00: Go

    You don't have any cheating involved i guess?

    Build 853 represents the old-style y-axis handling, just with having attempted to remove as many false positives as we could catch, before switching implementation fundamentally.

    Latest builds will change y-axis handling fundamentally, alas with other false positives to iron out. we will try to pull off a recommended release within the next 7-10 days, aiming at removing the most false positives in survivalfly (new builds), and adding a replacement for fight.speed using ProtocolLib. We still have issues in the queue so i'd not switch to "latest", unless you keep track of latest tickets (to not duplicate too much) and want to help speed up wrapping up things, at the risk of new / other false positives with survivalfly. Essentially we do have a couple of actual changes queued, so likely after 3,4 builds to follow, it'll get interesting to switch.

  • Avatar of Bobcat00 Bobcat00 Oct 13, 2015 at 21:34 UTC - 0 likes

    @asofold: Go

    I'm running 1.8.8 with build 853 and I get lots of nopassable and survivalfly violations. It would be nice if you could improve that part of NCP. Thanks for an incredibly useful plugin.

    Server: - Survival/PVP, 7 Mob Arenas, Creative World
    Web site:

  • Avatar of asofold asofold Oct 12, 2015 at 11:27 UTC - 0 likes

    @Chris_GSPvP: Go

    We are currently changing around a couple of things, including the default pvp behavior, so i can't really recommend anything, except maybe for testing with trusted players and adapting settings accordingly.

    The version of NCP + server also make a big difference, without knowing those we can't really tell much. I assume we will have a recommended release within 1-2 weeks.

  • Avatar of Chris_GSPvP Chris_GSPvP Oct 11, 2015 at 18:23 UTC - 0 likes

    People get lagged back when they PvP and run, this has something to do with the survivalfly action. What VL etc. do you prefer for me to use?

    Secondly, for a PvP server.. which config changes do I need? Do you mind to make a good config for me Asofold?

    My skype: Chris_GSPvP

  • Avatar of asofold asofold Oct 10, 2015 at 14:38 UTC - 0 likes

    @MinePuppeh: Go

    We will make a full release once the latest changes have stabilized and after putting fight checks on feet once more.

    Until then, for 1.8, you might keep to the latest "mostly stable" development build, unless you want to help testing with the latest ones.

    We might upload the "mostly stable" one(s) as alpha/beta, but not as "recommended".

  • Avatar of MinePuppeh MinePuppeh Oct 08, 2015 at 21:47 UTC - 0 likes

    When do you plan to release a new recommended version? I hope you guys can crack down on exploits.

  • Avatar of asofold asofold Oct 07, 2015 at 21:43 UTC - 0 likes

    @ShawnPR1: Go

    For 1.8 .... are you using the latest "mostly stable" development build? The latest development build is rather for the brave right now, we hav to consolidate - certainly the latest version available on BukkitDev is long outdated, concerning 1.8.

    Best includ the output of the "ncp version" command as text, so we can rule out current specialties quickly.


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