Packet Interception
Hooks the client network thread to read and rewrite DonutSMP menu and inventory packets in real time.
Fabric 26.2 & 1.21.11 · Client-Side
DonutDupe
Duplicate any item on DonutSMP at the packet level — and run the entire Auction House from a rebuilt, zero-delay menu with no chest UI and no ghost items. Built for Minecraft 26.2 and 1.21.11.
0msAH delay
Packetlevel dupe
26.2 / 1.21.11Fabric
Packet InterceptionZero-Lag AH/dupeGhost GuardInstant BuyFull-Menu Coverage26.21.21.11Client-SidePacket InterceptionZero-Lag AH/dupeGhost GuardInstant BuyFull-Menu Coverage26.21.21.11Client-Side
What it does
Packet control, rebuilt menus
DonutDupe sits on the network thread — where DonutSMP actually talks — and turns clunky chest menus into native UI.
AH Menu Rebuild
Replaces the chest-based /ah with a native, searchable, zero-delay interface.
Item Duplication
/dupe duplicates any stack — spawners, gear, resources — through a controlled packet desync.
Ghost-Item Guard
Lag-proof. If a desync is detected the item is picked up with your mouse instead of opening the next screen.
Instant Buy
Buy packets fire the moment a listing arrives — sub-100ms, faster than any human click.
Full-Menu Coverage
Not just /ah. Every DonutSMP menu — orders, shop, crates — becomes searchable and integrated.
Modules
What ships in the JAR
01
/dupe
Duplicate the held stack or the item in a selected slot.
02
AH Overlay
Native auction house UI with instant search and sorting.
03
Packet Sniffer
Live view of the menu packets DonutSMP sends and receives.
04
Ghost Guard
Prevents item loss when the server desyncs.
05
Sign-Free Search
Search listings without typing on a sign.
06
Instant Buy
Auto-fires the buy packet on matching listings.
07
Menu Cache
Caches menu contents for zero-delay navigation.
08
Price Tooltips
Shows live listing price on hover.
09
Auto-Refresh
Keeps the menu in sync without re-opening.
10
Coord Logger
Logs your position on each action for safety.
11
Config GUI
In-game toggles for every feature.
12
Update Checker
Notifies you when a new build drops.
Setup
Installation
Up and running in under two minutes.
1
Install Fabric
Install Fabric Loader for Minecraft 26.2 or 1.21.11 and launch once to generate your mods folder.
2
Download the JAR
Grab the latest .jar from the download section above. No account, no key.
3
Drop in mods
Place the .jar (plus Fabric API) into .minecraft/mods.
4
Launch & use
Start Minecraft with the Fabric profile, join DonutSMP, and open the GUI.
Get it
Download
Free, client-side, no account. Fabric 26.2 & 1.21.11 + Fabric API.
DonutDupe 26.2
Minecraft 26.2 · Fabric
Download 26.2DonutDupe 1.21.11
Minecraft 1.21.11 · Fabric
Download 1.21.11Questions
FAQ
DonutDupe is a client-side Fabric mod for Minecraft 26.2 and 1.21.11 on DonutSMP. It hooks the client's network thread to duplicate items at the packet level and rebuilds the Auction House into a native, zero-delay menu.
The mod intercepts DonutSMP's menu and inventory packets, creating a controlled desync between the client and server. Items are duplicated by replaying and reconciling the affected packets.
The same packet layer replaces the clunky chest-based /ah with a native, searchable interface: no chest UI, no sign search, no ghost items, and instant buys.
No. A ghost-item guard picks the item up with your mouse instead of letting the server open the next screen when a desync is detected.
Minecraft 26.2 and 1.21.11 on Fabric Loader. Fabric API required.