Unlimited Stacks Mod
Unlimited Stacks Mod lifts the vanilla 99-item stack cap on Fabric, with stack sizes up to 1,073,741,823 for most items.
What it does
The mod changes three places where Minecraft enforces the stack limit: the item limit that sets how high a stack can grow, the container slot limit that clamps stacks when they move between inventories, and the codec range that validates saved stack counts. Most mods that remove the cap only address one or two of these, which is why stacks above 99 can drop back to 99 or vanish after a relog or world save.
The server and every player need the mod installed. Tools, weapons and armour are left out on purpose, because Minecraft cannot stack damageable items. Everything else, including blocks, food, materials and misc items, gets the full new limit. Files are published for Fabric only, for 26.1.2, 26.2 and 26.3, with 1.0.5 for 26.3 as the latest, and the source code is public under the MIT License.
Key features
Raised stack limit
Stack sizes rise from 99 to 1,073,741,823 for non-damageable items, and the limit can be set to Integer.MAX_VALUE.
Persistent stacks
Stacks above 99 keep their count through a relog and a world save, since the codec range is patched as well.
Container slot support
Chests and other containers accept the larger counts, so items are not silently clamped to the old limit when moved.
Vanilla-friendly exclusions
Tools, weapons and armour keep their usual behaviour, and the mod avoids the internal error that comes from stacking damageable items.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners and players who run survival servers with drop multipliers, or creative worlds that need large item counts. Players who only want larger stacks for a few items may prefer a narrower option.
How it compares
Way Bigger Stacks is a Fabric mod for 26.2 that is client or server optional and released under the MIT License, but it is not open source. Bigger Stacks Size is a Fabric mod for 26.2 that runs on client and server under All rights reserved. StackPlus adds Fabric and NeoForge files for 1.21 – 26.3 and is open source under the MIT License, but it is client required and server optional, so the client needs it while the server can skip it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Unlimited Stacks Mod | Fabric | 26.1.2 – 26.3 | Client and server | 2026-10-08 |
| Way Bigger Stacks | Fabric | 26.2 | Client or server, optional | 2026-08-29 |
| Bigger Stacks Size | Fabric | 26.2 | Client and server | 2026-09-05 |
| StackPlus | Fabric and NeoForge | 1.21 – 26.3 | Client required, server optional | 2026-09-17 |
Questions
Does Unlimited Stacks Mod need to be installed on the server?
Why do stacks above 99 disappear after a relog?
Are tools and armour affected?
In the catalog
Unlimited Stacks Mod is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 8,071 mods support Minecraft 26.3.
More from HarryTheeWizard
Similar mods
What the author says
Vanilla caps item stacks at 99. This mod raises that to 1,073,741,823. No config. No commands. No GUI. Install it and forget about it.
Official listing
- Modrinth page
- modrinth.com/mod/unlimited-stacks-mod
- Owner
- HarryTheeWizard
- Published
- 2026-05-19
- Updated on Modrinth
- 2026-10-08
- Facts verified
- 2026-10-15