About StackSize
From ModrinthAllows you to adjust max stack sizes with a Fabric mod.
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How To Use!
Use /stacksize to control the stack size of any item in the game! 📦
Items
/stacksize minecraft:ender_pearl 99
Tags
/stacksize #minecraft:wool 16
_As of v1.4, the config file has been <ins>removed</ins> & replaced by per world storage_
_Additionally, tags are ONLY supported for v1.4+_
Important
While going over 64 _is_ supported, it's incredibly buggy unless using the mod on both client & server.
_it also, to my knowledge, simply does not allow this on 1.20.1_
if you have any issues/suggestions, join the discord.
Highlights
From source dataGame versions
Supports 18 Minecraft versions, the newest being 26.3.
Loaders
Runs on Fabric.
Footprint
Rated a light load on a server.
StackSize on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Fabric
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- v1.4, released 2026-10-22
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.20.1 to 26.3 (18 versions) | 26.3 |
From 8 recorded builds of StackSize.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| v1.4 | 2026-10-22 | 1.20.1 | Fabric |
| v1.4 | 2026-10-22 | 1.21.11 | Fabric |
| v1.4 | 2026-10-22 | 26.1 to 26.3 (5 versions) | Fabric |
| v1.3 | 2026-01-22 | 1.21.11 | Fabric |
| v1.3 | 2025-11-25 | 1.20.1 | Fabric |
| v1.3 | 2025-11-25 | 1.21 to 1.21.10 (11 versions) | Fabric |
Run StackSize on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogQuality of life & UI
Small conveniences, tweaks and interface improvements players notice straight away.
Runs on your server
From source side supportModrinth lists StackSize as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- Fabric
- Runs on
- Serverrequired on the server
- Game versions
- 26.3 and 17 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-23Open ↗
- ✓AuthorLamibee, as published on Modrinth
- ✓LicenseLicenseRef-All-Rights-ReservedFree
StackSize, answered
Generated from the mod’s own source data.
Do my players need to install StackSize?
Modrinth lists StackSize as required on the server. Check its Modrinth page to see whether players need it too.
Which loaders does it support?
Fabric.
Is it free?
Yes. StackSize is free to download from Modrinth. Its license is LicenseRef-All-Rights-Reserved.
How do I add it to my Nxeon server?
Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

Run StackSize on a Minecraft server.
Deploy in about a minute from $4.99 a month, then add StackSize in one click.











