Rattlebox
by pinemellon
Players who open many storage containers can use Rattlebox to see what is inside a chest, barrel, shulker box or ender chest without opening it.
What it does
Rattlebox is a Fabric client utility in the storage category. It previews the contents of supported storage blocks, including chests, barrels, shulker boxes and ender chests, and indexes items so a search can find them across remembered storage. The H key opens the stash search, and the J key toggles a look-at overlay that shows a preview of the container under the crosshair.
Preview data comes from containers the player has already opened, so a container that was never opened in the current world is not yet known. In a live singleplayer world, or on a multiplayer server that runs Rattlebox, the mod keeps its view current. On a normal server that does not install Rattlebox, the mod falls back to a cache built from earlier visits. The mod pairs with general HUD mods such as Jade. It is released under the PolyForm Noncommercial License 1.0.0 and is not open source. Fabric builds need Fabric API matching the Minecraft version.
Key features
Container preview
Looking at a chest, barrel, shulker box or ender chest shows its contents before the player clicks it.
Stash search
A search screen finds an item across the storage the player has indexed and marks where it was last seen.
Shulker contents grid
Hovering a shulker box shows its inventory as a grid, so nested items can be checked without placing it.
Waypoint on hit
A search result can drop a waypoint on the storage that holds the item, so the player can walk back to it.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Finding lost items
After a base grows across many chests, a player can search for an item and follow the waypoint to the container.
Who it’s for: Players with large storage setups on Minecraft 1.21 – 1.21.11 who want to check contents before walking to a container. Server owners who do not install the mod should expect the cached view described above.
How it compares
Quick Stash is a client and server mod, open source under the MIT License, with files for 1.21.1 – 1.21.11. Basic Chest Search is client-side only and open source under the MIT License, but only for 1.21.9 – 1.21.10. UniversalFinder is client-side only, covers only 1.21.11, and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Rattlebox | Fabric | 1.21 – 1.21.11 | Client or server, optional | 2026-07-26 |
| Quick Stash | Fabric | 1.21.1 – 1.21.11 | Client and server | 2026-07-03 |
| Basic Chest Search | Fabric | 1.21.9 – 1.21.10 | Client-side only | 2025-12-19 |
| UniversalFinder | Fabric | 1.21.11 | Client-side only | 2026-07-03 |
Questions
Does Rattlebox need Fabric API?
Does a server need Rattlebox installed?
Why does a container show nothing?
In the catalog
Rattlebox is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
Rattlebox is a preview-first client utility for storage. Look at a chest or barrel and see what’s inside before you click. Hover a shulker or ender inventory for a content grid. When you’ve lost something in the base, open search, find the item across all of your storage, and follow a waypoint back to the hit. On a…
Official listing
- Modrinth page
- modrinth.com/mod/rattlebox
- Owner
- pinemellon
- Published
- 2026-07-25
- Updated on Modrinth
- 2026-07-26
- Facts verified
- 2026-10-15