Copy Paster — copy and paste Minecraft structures with player-relative positioning

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 with keybinds, name it in chat, then paste it later — position follows **where you stand** at copy time and paste time, so offsets stay intuitive. - **`[` / `]` copy** — two corners, live wireframe preview, name in chat - **Paste options** — absolute coords, rotation, mirror, skip air, overwrite confirm - **Paste ghost preview** — cyan box when blocks would be overwritten (respects rotation/mirror) - **Post-paste edits** — `/pasterotate`, `/pastemirror`, `/pastemove` with cascaded undo - **Undo** — `/pasteundo` with persistent snapshots under `copypaster/undos/` (survives restart) - **LuckPerms** — grant `copypaster.*` nodes to non-ops; vanilla operators always allowed - **Web UI** (optional) — browser 3D viewer/editor with texture-accurate preview, palette remap, voxel paint, **import/export `.nbt`** - **Ukrainian (`uk_ua`)** — full UI strings alongside English > Source: [github.com/matrunchyk/copypaster](https://github.com/matrunchyk/copypaster) · [Changelog](https://github.com/matrunchyk/copypaster/blob/main/CHANGELOG.md) · [Issues](https://github.com/matrunchyk/copypaster/issues) --- ## Install | Where | What | |-------|------| | **Dedicated server** | Matching `copy_paster-+.jar` in `mods/` + **Fabric API** | | **Each player who copies** | **Same JAR** (same MC version) in client `mods/` + bind **`[`** / **`]`** | **Pick your JAR** (server and every copying client must match): | Minecraft | Java | Example artifact | |-----------|------|------------------| | **1.21.11** | 21 | `copy_paster-3.4.1+1.21.11.jar` | | **26.2** | 25 | `copy_paster-3.4.1+26.2.jar` | Requires **Fabric Loader 0.19.3+** and **Fabric API**. **Server-only mode:** `/paste`, `/copylist`, `/copyinfo`, `/copyblocks`, `/copydelete`, `/copyweb`, and the web UI still work. **World copy** requires the client mod and keybinds (or `/copy` with coords). **Optional:** [Mod Menu](https://modrinth.com/mod/modmenu) + [Cloth Config](https://modrinth.com/mod/cloth-config) for in-game client settings. --- ## Quick start ### 1 · Save a region 1. Stand at the **anchor** point you want for this copy. 2. Press **`[`** on corner 1, then **`]`** on corner 2 (wireframe follows your crosshair for the end corner). Or run **`/copy x1 y1 z1 x2 y2 z2`** without the client mod (requires `copypaster.copy`). 3. Type a structure name in **chat** (`a`–`z`, `0`–`9`, `_`, `-`, max 64 chars). Type **`cancel`** to abort (timeout from server config, default 60 s). ### 2 · Paste it back 1. Stand in the **same relative spot** you used when copying (or use `at` — see commands). 2. `/paste ` — if the ghost warns about overwrites, run the suggested `… confirm` command. 3. Use **`/pasteinfo`** while looking at the build, or **`/pasteundolist`**, then **`/pasteundo `**. **Examples:** ```text /paste house /paste house at 100 64 -20 /paste house rotate 90 mirror left_right noair confirm ``` --- ## Commands | Command | Description | |---------|-------------| | `/copyhelp` | Command summary (copy, paste, undo, web UI) | | `/copy x1 y1 z1 x2 y2 z2` | Copy region via coordinates (chat naming) | | `/copyblocks [page]` | Block type shopping list (paginated) | | `/paste ` | Paste at player-relative anchor | | `/paste at ` | Paste with min corner at world coordinates | | `/paste rotate <90\|180\|270>` | Rotate before placing | | `/paste mirror ` | Mirror before placing | | `/paste noair` | Skip air blocks in the structure | | `/paste … confirm` | Paste after overwrite warning | | `/pasteundo [id]` | Undo latest paste or a specific undo id | | `/pasteinfo [distance]` | Undo ID and details for paste at crosshair | | `/pasteundolist` | List pastes still available for undo | | `/pastecancel` | Dismiss overwrite preview without pasting | | `/pasteselect ` | Highlight a paste; transforms target it | | `/pasterotate [90\|180\|270]` | Rotate an existing paste (cascaded undo) | | `/pastemirror x\|z` | Mirror an existing paste | | `/pastemove ` | Nudge an existing paste | | `/pastemove at ` | Move paste min corner to coordinates | | `/copylist` | List saved structures | | `/copyinfo ` | Size, dimension, offset, metadata | | `/copydelete ` | Remove `.nbt` + `.json` | | `/copyweb` | Print web UI URL (when enabled) | **Access:** vanilla **operator** always has full access. With **LuckPerms**, non-ops need `copypaster.*` nodes (see [README](https://github.com/matrunchyk/copypaster#commands) for the full permission table). --- ## Controls | Input | Action | |-------|--------| | **`[`** | Set corner 1 (look at a solid block) | | **`]`** | Set corner 2 and send region to server | | Chat name | Save structure after corners are set | | **`cancel`** in chat | Abort naming session | Keybinds default to **`[`** and **`]`** on new installs — rebind under **Options → Controls → Copy Paster** if needed. --- ## Web UI (optional) Browser 3D viewer/editor for saved structures. Enable in `config/copypaster-server.yml` (`web.enabled: true`), restart, then run **`/copyweb`**. Features: orbit + WASD pan, Colors/Textures modes, palette remap, voxel paint, **import/export `.nbt`**. --- ## Limits & storage | | | |---|---| | **Max volume** | `limits.maxVolume` in server config (default **32 768**) | | **Copy session timeout** | `limits.sessionTimeoutSeconds` (default **60**) | | **Files** | Server `copypaster/structures/` — `.nbt` + `.json` | | **Undo** | Saved under `copypaster/undos/` until `/pasteundo`; survives restart | --- ## License [MIT](https://github.com/matrunchyk/copypaster/blob/main/LICENSE) — Copyright (c) 2026 Serhii Matrunchuk

copypaster

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Minecraft: Java Edition

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Copy Paster