ModsFinder

PacketLogger

by Ari24-cb24

PacketLogger is a Fabric mod that records the network packets a client sends and receives, and shows them in a web interface.

FabricClient-side onlyGNU Affero General Public License v3.0 onlyOpen source1.19.3 – 1.19.4

What it does

The mod runs on the client only, so servers do not need it. Once installed, it starts a web interface on port 8080 and a websocket on port 1337 by default. The default web interface connects to the websocket and receives packet information as JSON data, and a separate client can connect to the websocket to receive the same data. The protocol is defined in protocol.md in the source repository. Packet information is loaded in chunks and lazily to reduce traffic.

The mod is published for Fabric only, with two release versions, 1.19.3 and 1.19.4. The latest file is 1.6.1 for 1.19.4, dated 2023-05-12. PacketLogger is open source and released under the GNU Affero General Public License v3.0 only. The source code, issue tracker and wiki are public.

Key features

  1. Packet logging on the client

    Packets are captured and validated on the client side, so the mod records traffic without any server component.

  2. Web interface

    A built-in web interface lists packet information, with a default port of 8080 that can be changed in the in-game config.

  3. Websocket feed

    A websocket on port 1337 by default streams packet data as JSON, which other tools can read in place of the web interface.

  4. In-game configuration

    Ports and other settings can be changed through an in-game config screen.

Compatibility

Latest build for each game version and loader.

1.19.41.6.1
1.19.31.6.0+1.19.3
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Item Logger is a client-side Fabric mod for 1.20.5 – 1.21.7, open source under the GNU General Public License v3.0 or later. Pekilog is server-side only, open source under the CC0 1.0 Universal license, and published for 1.19.2 – 1.21.1. ISIA is also server-side only and open source under the MIT License, with files for 1.20.2 – 1.20.4.

ModLoadersGame versionsEnvironmentUpdated
PacketLoggerFabric1.19.3 – 1.19.4Client-side only2023-05-12
Item LoggerFabric1.20.5 – 1.21.7Client-side only2025-06-30
PekilogFabric1.19.2 – 1.21.1Server-side only2024-09-22
ISIAFabric1.20.2 – 1.20.4Server-side only2024-04-14

Questions

Does PacketLogger need to be installed on the server?

No. It is installed on the player's side alone, so servers need nothing.

Which ports does PacketLogger use?

The web interface uses port 8080 and the websocket uses port 1337 by default. Both can be changed in the in-game config.

Will PacketLogger receive new updates?

The author has stopped developing the mod and moved its frontend to wisp-forest/gadget, which is named as the alternative. The latest file is 1.6.1 for 1.19.4.

In the catalog

PacketLogger is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 9,374 mods support Minecraft 1.19.4.

Management mods8,016Fabric modsMods for 1.19.49,374

More from Ari24-cb24

All projects
Remote Paintings1.21.4ChatSocket1.21.5

Similar mods

Cherished Worlds1.12.2 – 26.3Default Options1.18 – 26.3Resourcify1.8.9 – 26.3Rebind Narrator1.16.1 – 26.1.2Paxi1.19.2 – 26.1.2Starter Kit1.16.5 – 26.3

What the author says

Since I don't have the time to work on the frontend and the backend, I will discontinue this PacketLogger project. But don't worry, the frontend won't be for nothing. Developing on both sides takes up a lot of time, especially if you want to implement cool new features on the frontend while the backend contains bugs…
Ari24-cb24, on the Modrinth page

Official listing

Owner
Ari24-cb24
Published
2023-04-03
Updated on Modrinth
2023-05-12
Facts verified
2026-10-15

Tags

ManagementUtility
Open on ModrinthCompare