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Kryptonite

Kryptonite

by lewmc • Downloads: 0 • Followers: 0
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Kryptonite

Kryptonite is a server optimiser and exploit patcher that heavily reduces the amount of time it takes to setup your server, whilst also ensuring that your server configurations are setup correctly. Kryptonite has two modules: KOS and EDB.

Kryptonite does not run automatically, it must be triggered using commands. See below for more information.

Whilst we've tested Kryptonite to the best of our ability to ensure quality and safety, you should backup your server as a precaution before using the software.

How does it work?

Kryptonite is a plugin that allows you to take full advantage of your server software's power by helping you to make the best choices around your server's configuration. By suggesting ranges that your configuration values should be within, Kryptonite helps you to balance playability with performance.

Whilst Kryptonite does not patch exploits or improve performance directly, it enables a number of configuration patches built-in to your server software. Because of this you can uninstall the software after running the command, as Kryptonite does not need to be on the server once the process has been completed. However, keeping Kryptonite on the server will give you update messages which may contain additional optimisations in the future.

Kryptonite Optimisation System (KOS)

The Kryptonite Optimisation System runs with the /kos command - it manages your server's configurations to have the most performance-friendly values and reduce lag. The optimisations used in KOS are widely regarded by the community to be robust and to reduce lag by a substantial amount. You can learn more about KOS on our Wiki. You need to restart your server after using KOS for it to take effect.

Exploit Database (EDB)

The Exploit Database runs with the /edb command - it handles the checking and patching of Exploits. A full list of patchable exploits is available on our Wiki. You need to restart your server after using EDB for it to take effect.

Servers

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Requirements

  • CraftBukkit, Spigot, Paper, Purpur, Pufferfish, or Folia. It will probably run on forks of these, we just haven't tested them.
  • Java 21 or above.
  • For specific Minecraft versions, please see the versions tab.

Wiki and Support

We have an open wiki available if you need help with anything, it contains information regarding all aspects of Essence and how to use it. Just click the image below or visit lewmc.net/wiki! Wiki Not into Wikis? No problem! We also have a community Discord server that we regularly provide support in - visit lewmc.net/discord to join!

Metrics

Kryptonite collects anonymous statistics including the number of servers running Kryptonite, the number of players, etc. using bStats, an open-source statistics service for Minecraft software. You can opt out in plugins/bStats/config.yml. bStats

Contributing

GitHub If you like Kryptonite and you'd like to add something, feel free to contribute! Our Git repository is available at git.pixelset.dev/lewmc/kryptonite.

All Versions

+ Add Version
Name Game version Platforms Published Downloads Actions
26.3 26.2 26.1.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
26.2 26.1.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
26.1.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.21.x 1.20.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.21.x 1.20.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.21.x 1.20.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.21.x 1.20.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.21 1.20.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.20.x
Bukkit Folia Paper Purpur Spigot
5h ago 1
1.20.x
Bukkit Paper Purpur Spigot
5h ago 1
1.20.x
Bukkit Paper Purpur Spigot
5h ago 1
1.20.x
Bukkit Paper Purpur Spigot
5h ago 1
1.20.x
Bukkit Paper Purpur Spigot
5h ago 1
1.20.x
Bukkit Paper Spigot
5h ago 1
[2.1.1] Kryptonite 2.1.1 by lewmc on Oct 15, 2026
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Kryptonite 2.1.1 fixes a bug in the update checker where some requests would silently fail.

Full changelog: https://wiki.lewmc.net/w/Kryptonite:Changelogs#2.1.1

If you experience any issues please contact us via lewmc.net/help for assistance.

[![Get up to 25% off Minecraft Server Hosting at lewmc.net/deals](https://cdn.modrinth.com/data/cached_images/3715e70ee55ee238c3f6602074812f1289e85e2e_0.webp)
](https://lewmc.net/deals)

Looking for a new server? Get up to 25% off Minecraft Server Hosting at lewmc.net/deals
[2.1.0] Kryptonite 2.1.0 by lewmc on Oct 15, 2026
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Kryptonite 2.1.0 adds partial experimental support for Leaf, rewrites the code for Manual KOS to allow for faster updates in the future, adds new Minecraft v26 configuration items including AutoKOS support for those versions.

Full changelog: https://wiki.lewmc.net/w/Kryptonite:Changelogs#2.1.0

If you experience any issues please contact us via lewmc.net/help for assistance.

[![Get up to 25% off Minecraft Server Hosting at lewmc.net/deals](https://cdn.modrinth.com/data/cached_images/3715e70ee55ee238c3f6602074812f1289e85e2e_0.webp)
](https://lewmc.net/deals)

Looking for a new server? Get up to 25% off Minecraft Server Hosting at lewmc.net/deals
Kryptonite 2.1.0 adds experimental support for Leaf, rewrites the code for Manual KOS to allow for faster updates in the future, adds new Minecraft v26 configuration items including AutoKOS support for those versions.

  • This is a snapshot version and may contain bugs, crashes, or other unknown issues. Use at your own risk, and backup your server before using.**

Full changelog: https://wiki.lewmc.net/w/Kryptonite:Changelogs#2.1.0-SNAPSHOT

If you experience any issues please contact us via lewmc.net/help for assistance.

[![Get up to 25% off Minecraft Server Hosting at lewmc.net/deals](https://cdn.modrinth.com/data/cached_images/564ff71222f7fbbfbac0f299739b71cf2551fe03_0.webp)
](https://lewmc.net/deals)

Looking for a new server? Get up to 25% off Minecraft Server Hosting at lewmc.net/deals
[2.0.1] Kryptonite 2.0.1 by lewmc on Oct 15, 2026
Download
Kryptonite 2.0.1 fixes a bug that can cause some servers to crash if using the "FarmFriendly" profile.

If you've been affected by this bug please delete your paper-world-defaults.yml file and /world/paper-world.yml files.

Full changelog: https://wiki.lewmc.net/kr-changelogs.html#2-0-1

If you experience any issues please contact us via lewmc.net/help for assistance.

[![Get up to 25% off Minecraft Server Hosting at lewmc.net/deals](https://cdn.modrinth.com/data/cached_images/564ff71222f7fbbfbac0f299739b71cf2551fe03_0.webp)
](https://lewmc.net/deals)

Looking for a new server? Get up to 25% off Minecraft Server Hosting at lewmc.net/deals
[2.0.0] Kryptonite 2.0.0 by lewmc on Oct 15, 2026
Download
# Known issues
This version has a known issue that may break your server.

Kryptonite 2.0.1 fixes a bug that can cause some servers to crash if using the "FarmFriendly" profile.

If you've been affected by this bug please delete your paper-world-defaults.yml file and /world/paper-world.yml files.

# Original version notes:

  • Welcome to Kryptonite 2.0.0!**

This version completely overhauls the Kryptonite Optimisation System making is quicker and easier to use than ever before! Here's what's new:

  • Both the Kryptonise Optimisation System (KOS) and the Exploit Database (EDB) now have a GUI that can be accessed in-game (command-line access for console is still in!)
  • Introducing KOS Manual Mode, a mode which allows you to tweak **hundreds** of specific optimisaton values from CraftBukkit, Spigot, Paper, Purpur, and Pufferfish! This mode also provides guidance on recommended ranges that these values should be within based on a combination Eternity and YouHaveTrouble's guides.
  • KOS Auto can now load new profiles faster.
  • KOS now applies patches faster.
  • Added three new EDB exploits: EDB-10 (Anti-Nether roof access), EDB-11 (Anti-Xray), EDB-12 (Anti-Impersonation).

We've also fixed a number of bugs and improved the overall performance of the software!

  • Please note: Some commands have changed in this version. See the Wiki for more information.*

Full changelog: https://wiki.lewmc.net/kr-changelogs.html#2-0-0
Welcome to Kryptonite 2.0.0! This update contains the new Kryptonite Optimisation System Manual mode which guides you to optimise your server, whilst allowing you to maintain granular control over the changes being made.

  • This is a snapshot version and may contain bugs, crashes, or other unknown issues. Use at your own risk, and backup your server before using.**

This version DOES NOT currently support console access, and the automated optimisation system has been temporarily removed.
[1.4.0] Kryptonite 1.4.0 by lewmc on Oct 15, 2026
Download
This version adds a GUI to KOS to allow administrators to select the profile that should be used in-game without having to access any configuration files. We've also added a new mob farm friendly profile.

Full changelog: https://wiki.lewmc.net/kr-changelogs.html#1-4-0
[1.3.0] Kryptonite 1.3.0 by lewmc on Oct 15, 2026
Download
This version adds support for Folia, adds KOS profiles, and warns server administrator is it detects plugins that may cause additional lag.

Full changelog: https://wiki.lewmc.net/index.php/Kryptonite_Changelogs#Kryptonite_version_1.3.0
Adds experimental support for Folia.

  • This is a snapshot version and may contain bugs, crashes, or other unknown issues.**
Use at your own risk, and backup your server before using.
[1.2.0] Kryptonite 1.2.0 by lewmc on Oct 15, 2026
Download
This version overhauls the Kryptonite Optimisation System and adds optimisations for Paper, Purpur, and Pufferfish.

Full changelog: https://wiki.lewmc.net/index.php/Kryptonite_Changelogs#Kryptonite_version_1.2.0
[1.1.2] Kryptonite 1.1.2 by lewmc on Oct 15, 2026
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Small patch that fixes compatibility issues with Purpur servers.

Full changelog: https://wiki.lewmc.net/index.php/Kryptonite_Changelogs#Kryptonite_version_1.1.2
[1.1.1] Kryptonite 1.1.1 by lewmc on Oct 15, 2026
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Fixed the file not found and update file missing bugs.

Replaced automated checking with prompts due to file access issues.

Full changelog: https://wiki.lewmc.net/index.php/Kryptonite_Changelogs#Kryptonite_version_1.1.1
[1.1.0] Kryptonite 1.1.0 by lewmc on Oct 15, 2026
Download
Added the [Exploit Database (EDB)](https://wiki.lewmc.net/index.php/Exploit_Database) as well as additional options for the [Kryptonite Optimisation System (KOS)](https://wiki.lewmc.net/index.php/Kryptonite_Optimisation_System).

KOS is now accessed through the /kos command instead of /kr run as it was in the previous version.

Full changelog: [https://wiki.lewmc.net/index.php/Kryptonite_Changelogs#Kryptonite_version_1.1.0](https://wiki.lewmc.net/index.php/Kryptonite_Changelogs#Kryptonite_version_1.1.0)
[1.0.0] Kryptonite 1.0.0 by lewmc on Oct 15, 2026
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  • server.properties support
  • Bukkit support
  • Spigot support
  • Paper support
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