
Secure Block Inventories
A paper plugin that lets players lock their blocks with shift + RMB. This plugin can also protect locked blocks against explosions and hoppers. These…
⬇ Download on ModrinthWhat does this plugin do?
This simple plugin allows all players in survival or adventure mode to lock block inventories (Chests, Furnaces, Barrels, etc.) by right-clicking on them while sneaking. Only the player that has locked a block can access and destroy the block in survival or adventure mode.
Settings
By default, hoppers will not be able to extract items from locked blocks but this can be changed by changing the content of the file ./SecureBlockInventories/settings/disable_hoppers_for_locked_blocks to 'false'.
The file ./SecureBlockInventories/settings/protect_locked_blocks_against_explosions allows to set whether locked blocks should be imune to explosions or not. (Immune by default)
To prevent abuse, there is a per player limit on how many blocks can be locked. Every player can lock up to 16 blocks by default but the limit can be set in the file ./SecureBlockInventories/settings/max_locks_per_player.
What if a locked block needs to be removed?
An admin can remove a locked block by simply breaking it in creative mode or by deleting the matching location in the SecureBlockInventories/locks directory.
Designed for SMP-Servers
Locked blocks can always be accessed by players in creative or spectator mode.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as SecureBlockInventories_1.21.1_1.0.jar — drop this file into the mods folder
- Download size: 1.7 MB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.