Copy cuboid regions to files. Paste them back exactly where you mean to — anchored to your position.
Copy Paster is a Fabric client + server mod for survival and creative builders who want a fast, visual way to duplicate structures without leaving the game. Select a box in the world, name it in chat, then paste it later — position follows where you stand at copy time and paste time, so offsets stay intuitive.
- Interactive
/copy— click two corners; live wireframe preview while you aim - Paste ghost preview — cyan outline when blocks would be overwritten
- Undo —
/pasteundorestores the last paste (in-memory until restart) - Ukrainian (
uk_ua) — full UI strings alongside English - Configurable highlights —
config/copypaster.ymlor optional Mod Menu + Cloth Config
Maintainer docs:
CLAUDE.md· Release notes:CHANGELOG.md
Install
| Where | What |
|---|---|
| Dedicated server | copy_paster-<version>.jar in mods/ + Fabric API |
| Each player | Same JAR in client mods/ (required for /copy, previews, HUD) |
Server-only mode: coordinate /copy x1 y1 z1 x2 y2 z2 and all /paste commands still work; bare /copy needs the client mod.
Optional: Mod Menu + Cloth Config for in-game highlight colour.
Quick start
1 · Save a region
- Stand at the anchor point you want for this copy.
- Run
/copy. - Attack corner 1, then corner 2 (blue wireframe follows your crosshair).
- Use (right-click) to cancel anytime.
- Type a structure name in chat (
a–z,0–9,_,-, max 64 chars). Typecancelto abort (60 s).
Legacy: /copy <x1> <y1> <z1> <x2> <y2> <z2> then name in chat — or bind [ / ] under Options → Controls → Miscellaneous (unbound by default).
2 · Paste it back
- Stand in the same relative spot you used when copying.
/paste <name>— confirm with/paste <name> confirmif the ghost preview warns about overwrites.- Save the undo ID from chat for
/pasteundo <id>.
Commands
| Command | Description |
|---|---|
/copy |
Interactive block selection (client mod) |
/copy <x1> <y1> <z1> <x2> <y2> <z2> |
Coordinate selection |
/paste <name> |
Paste at player-relative anchor |
/paste <name> confirm |
Paste after overwrite warning |
/pasteundo <id> |
Restore blocks from one paste |
/copylist |
List saved structures |
/copyinfo <name> |
Size, dimension, offset, metadata |
/copydelete <name> |
Remove .nbt + .json |
All commands require operator on the server.
Controls
| Input | Action |
|---|---|
/copy |
Start interactive selection |
| Attack block | Set corners 1 → 2 |
| Use | Cancel selection |
[ / ] (if bound) |
Legacy corner shortcut |
Limits & storage
| Max volume | 32 768 blocks |
| Files | Server copypaster/structures/ — <name>.nbt + <name>.json |
| Undo | In memory only; cleared on server restart |
| Highlight colour | Client config/copypaster.yml |
Build
./gradlew clean jar
# → build/libs/copy_paster-<version>.jar
Requires Java 25. See CLAUDE.md for deploy runbook (Fabric on gserver).
License
See repository license file if present; otherwise treat as private CrazyHouse tooling until a license is added.
