Bustloader
Bustloader is a Forge security mod that makes a server record which client mods and resource packs each player joins with.
What it does
When a player joins a server that runs Bustloader, the client silently sends the server a list of its mod IDs, its full resource pack list and the player's IP address. The server keeps these details in a log file, and the mod is described by its author as minimal and ruthless, aimed at server administrators who want to see what is on each client.
Bustloader is mandatory for the server: the server requires the BustLoader client, so players cannot join without it. Installation places the mod in the mods folder on the server and the same file in the mods folder on each client. The server and every player need the mod installed. The mod is released under the MIT License, but it is not open source.
Key features
Mandatory server check
The server requires the client mod, so a player who joins without it is kept from playing on that server.
Mod list reporting
On join, the client sends its full list of mod IDs to the server, which records them in the log.
Resource pack and IP logging
The full resource pack list and the player's IP address are sent to the server along with the mod list.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Server administration
Server owners who want a record of which mods and resource packs each connecting player uses can keep it in the log file.
Who it’s for: Server administrators who need to know the client mods and resource packs of players joining their Forge server. Bustloader is built for servers running Forge 1.20.1 and does not suit single-player play.
How it compares
In-game log display is a client-side only Forge mod for 1.20.1 under All rights reserved, so it shows information on a player's own screen and does not send anything to a server. Mandatory Optifine is also client and server, but it requires OptiFine and covers 1.14.4 – 1.20.1 under All rights reserved, while Bustloader is only for 1.20.1 under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Bustloader | Forge | 1.20.1 | Client and server | 2026-06-15 |
| In-game log display | Forge | 1.20.1 | Client-side only | 2026-04-05 |
| Mandatory Optifine | Forge | 1.14.4 – 1.20.1 | Client and server | 2024-08-02 |
Questions
Does Bustloader have to be installed on both sides?
Which game version and loader does Bustloader support?
Where does Bustloader store the collected data?
In the catalog
Bustloader is one of 8,016 Management mods on ModsFinder, and one of 2,698 Management mods for Forge. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
BustLoader — a minimal but ruthless Forge mod for server admins.
Official listing
- Modrinth page
- modrinth.com/mod/bustloader
- Owner
- koryagin.timur
- Published
- 2026-06-15
- Updated on Modrinth
- 2026-06-15
- Facts verified
- 2026-10-15
