HM Shulker Refill
by HundiMenia
HM Shulker Refill, a Fabric mod, refills the hotbar from matching blocks in the inventory and shulker boxes once the last placeable block is used.
What it does
When the stack in the hotbar runs out of a placeable block, the mod searches the inventory for a matching block first. If none is found, it looks inside shulker boxes held in the inventory and moves a matching block into the hotbar slot. Players who build with blocks stored in shulkers can keep placing without stopping to swap items by hand. Actionbar chat messages report when a matching block is found.
The mod suits large building projects, city builds, SMP servers and long survival sessions, where a single build can use many stacks of the same block. It is a server-side only mod: players join without installing it, and the server runs it alone. The mod is published for Fabric only, in two release versions, 1.21.1 and 1.21.11, with 1.5.1+mc1.21.11 for 1.21.11 as the latest file. It is released under the MIT License and is not open source.
Key features
Automatic hotbar refill
The hotbar slot is refilled with a matching block as soon as the last one in it is placed.
Inventory and shulker search
Matching blocks are searched in the inventory first, then inside shulker boxes that are held in the inventory.
Placeable blocks
The refill works with blocks that can be placed, so building materials stored in shulkers are reachable.
Actionbar messages
Chat messages in the actionbar confirm when a matching block is found and moved into the hotbar.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Large building projects
A build that needs many stacks of one block can continue without manual swaps from shulker boxes.
Long survival sessions
Players who store building materials in shulkers keep the hotbar stocked while working for hours.
Who it’s for: Players who build with large amounts of blocks in survival, on citybuild servers and SMPs where shulker boxes are used for storage.
How it compares
Smart Refill is a client-side only Fabric mod under the MIT License, published for 1.21.4 – 1.21.11, so it runs on the player's side alone. Functional Shulkers is a Fabric mod for 1.21.11 under the CC0 1.0 Universal license, and it is needed on the server, with the client optional, which is a different approach to shulker boxes. HM Shulker Refill runs on the server only and works for 1.21.1 and 1.21.11.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| HM Shulker Refill | Fabric | 1.21.1 – 1.21.11 | Server-side only | 2026-07-08 |
| Smart Refill | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-09-29 |
| Functional Shulkers | Fabric | 1.21.11 | Server required, client optional | 2026-01-18 |
Questions
Does HM Shulker Refill need to be installed on the client?
Which Minecraft versions does HM Shulker Refill support?
Does HM Shulker Refill need Fabric API?
In the catalog
HM Shulker Refill 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
HM Shulker Refill is a practical quality-of-life mod for Minecraft Fabric. The mod automatically refills your hotbar when the last block has been placed. It first searches for matching blocks in your inventory and then refills from shulker boxes.
Official listing
- Modrinth page
- modrinth.com/mod/hm-shulker-refill
- Owner
- HundiMenia
- Published
- 2026-05-23
- Updated on Modrinth
- 2026-07-08
- Facts verified
- 2026-10-15