Quietly Quietly is a server‑side silent container opening mod for Minecraft 1.21.1 ~ 1.21.10, supporting Fabric and NeoForge.

Its goal is simple:

Allow players to start silent container opening by Shift + right-click once

Display opening progress with a Bossbar

Keep container animations

Do not play vanilla container open/close sounds

Do not trigger vanilla CONTAINER_OPEN / CONTAINER_CLOSE sculk sensor events

Features Server‑side driven – the mod must be installed on the server; client installation is optional

Supports a generic silent opening process for all containers with an inventory GUI

Opening time is calculated based on the number of distinct item types inside the container

Retains animations for chests, barrels, ender chests, shulker boxes, etc.

Silences vanilla container open/close sounds

Blocks vanilla sculk sensor events related to container opening/closing

Built‑in English and Chinese localization

How to Use Look at a container with an inventory GUI.

Hold Shift.

Right‑click once with your main hand to start silent opening.

Keep sneaking until the Bossbar fills completely.

The container will then open silently.

Current Behavior Trigger method: Shift + right‑click once with main hand only

Must remain sneaking during the entire opening process

Releasing sneak, moving out of interaction range, or opening another interface will cancel the process

Opening speed formula: 12 + (number of distinct item types) * 4 ticks

"Distinct item types" means unique Item entries in non‑empty slots, not stack count

Supported Containers Any generic container that provides an inventory GUI

Vanilla containers with specifically handled animation and sound‑muting chains:

Chest / Trapped Chest

Barrel

Ender Chest

Shulker Box

Other GUI blocks (furnace, crafting table, hopper, etc.) also work with the silent opening logic

Compatibility Minecraft: 1.21.1 ~ 1.21.10

Fabric Loader: 0.19.2

Fabric API: 0.116.12+1.21.1

Java: 21

1.21.11 is not currently supported