Player Utils
by BeeNotSting
Player Utils is a NeoForge server administration mod for Minecraft 1.21.1 that adds four commands for controlling gameplay and player state.
What it does
The commands are meant for server administrators and cover player-level control. Running them requires operator level 2, the default for most server admins. In single-player, cheats must be enabled, which gives the same command access as the server environment. Player Utils runs on client and server, so the server and every player need the mod installed.
Player state is stored in the player's NBT data, so the values survive server restarts and relogs. A JSON slot list lets a server define conditions for specific inventory slots: hotbar slots 0 through 8, inventory slots 9 through 35, the armor slots head, chest, legs and feet, and the offhand. Each entry names a slot and the item IDs and counts it requires, and the Minecraft namespace is used for item IDs such as minecraft:diamond.
The mod is published for NeoForge only, with a single file, 1.0.0 for 1.21.1, dated 2026-07-24. The code is not open source and is covered by All rights reserved. Public source code, an issue tracker and a wiki are linked from the mod's listing.
Key features
Four administrative commands
Four commands provide gameplay control for administrators, restricted to operator level 2 by default.
Persistent player state
Values are stored in player NBT data and remain in place across server restarts and relogs.
Slot condition lists
A JSON array sets required items per slot, covering hotbar, inventory, armor and offhand positions.
Multiple items per slot
A single slot entry can accept more than one item, and a count can be left out so any amount is accepted.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Anti Offhand is a server-side and client mod for NeoForge that targets 1.21.4, so it does not cover 1.21.1 where Player Utils is published. Offhand Placement Control is client-side only, works on 1.21.1 and is released under the MIT License. Simple Utils is server-side only, open source under the MIT License and also published for 1.21.1, so players can join without installing it. Player Utils is not open source and requires both sides.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Player Utils | NeoForge | 1.21.1 | Client and server | 2026-07-24 |
| Anti Offhand | NeoForge | 1.21.4 | Server required, client optional | 2025-10-26 |
| Offhand Placement Control | NeoForge | 1.21.1 | Client-side only | 2025-09-30 |
| Simple Utils | NeoForge | 1.21.1 | Server-side only | 2025-03-05 |
Questions
Does Player Utils need to be installed on both sides?
Who can run the Player Utils commands?
Do player changes survive a server restart?
Where can problems with Player Utils be reported?
In the catalog
Player Utils is one of 8,016 Management mods on ModsFinder, and one of 2,689 Management mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
A powerful administrative mod for NeoForge 1.21.1 that adds four essential commands for gameplay control. All states are persisted in each player's NBT data, surviving server restarts and relogs.
Official listing
- Modrinth page
- modrinth.com/mod/player-utils
- Owner
- BeeNotSting
- Published
- 2026-07-24
- Updated on Modrinth
- 2026-07-24
- Facts verified
- 2026-10-15