Packet Ninja

Packet Ninja

Customize logging for incoming and outgoing packets. Mod for developers.

by
559 Downloads
fabricutility
Rent Server with this Mod

Screenshots

Logo
Logging List
Outgoing
Incoming Packets

About this Mod

Packet Ninja Logo

A utility mod used to customize logging for incoming and outgoing packets.

The aim is to make working with packets, specifically during development, a little easier to debug! :)

Screenshots:

Screenshot 1

Screenshot 2

Screenshot 3

Features:

Pretty packet formatting:

There are plans on supporting all packets; currently there is full formatting for the essentials:

Clientbound

  • ClientboundAddEntityPacket
  • ClientboundCustomPayloadPacket
  • ClientboundRemoveEntitiesPacket
  • SetPassengersHandler

Serverbound

  • ServerboundInteractPacket
  • ServerboundPlayerActionPacket
  • ServerboundSwingPacket

⚠️ Warning
This mod is under active development, not all packet types have nice formatting (if any).

Available Versions

Packet Ninja 0.1.0release
MC 1.21.11fabric
March 28, 2026
Packet Ninja 0.0.5release
MC 1.21.11fabric
March 25, 2026
⬆️ 0.0.4 : Update to 1.21.11release
MC 1.21.11fabric
December 30, 2025
✨ 0.0.3 : More Packets!release
MC 1.21.10fabric
December 30, 2025
⬆️ 0.0.2 : 1.21.10 Supportrelease
MC 1.21.10fabric
November 5, 2025

How to Install Packet Ninja on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "Packet Ninja". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.8

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Packet Ninja server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is Packet Ninja compatible with fabric?

Packet Ninja officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Packet Ninja – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Packet Ninja consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Packet Ninja with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU Lesser General Public License v3.0 only
Server-side
Unsupported

Supported Versions

1.21.111.21.101.21.8