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Mineforgian

copypaster

Copy and paste Minecraft structures with player-relative positioning, ghost preview, persistent undo, and an optional browser editor.

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Обновлён
22 августа 2026 г.
Лицензия
MIT

Опубликован 17 мая 2026 г.

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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.

Minecraft 1.21.11 and 26.2 Fabric Loader 0.19.3 Java 21 or 25 Version 3.4.1

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 · Changelog · Issues

Install

Where What
Dedicated server Matching copy_paster-<version>+<mc>.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 + 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 <name> — if the ghost warns about overwrites, run the suggested … confirm command.
  3. Use /pasteinfo while looking at the build, or /pasteundolist, then /pasteundo <id>.

Examples:

/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 <name> [page] Block type shopping list (paginated)
/paste <name> Paste at player-relative anchor
/paste <name> at <x> <y> <z> Paste with min corner at world coordinates
/paste <name> rotate <90|180|270> Rotate before placing
/paste <name> mirror <left_right|front_back> Mirror before placing
/paste <name> noair Skip air blocks in the structure
/paste <name> … 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 <undo id> Highlight a paste; transforms target it
/pasterotate [90|180|270] Rotate an existing paste (cascaded undo)
/pastemirror x|z Mirror an existing paste
/pastemove <dx> <dy> <dz> Nudge an existing paste
/pastemove at <x> <y> <z> Move paste min corner to coordinates
/copylist List saved structures
/copyinfo <name> Size, dimension, offset, metadata
/copydelete <name> 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 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/ — <name>.nbt + <name>.json
Undo Saved under copypaster/undos/ until /pasteundo; survives restart

License

MIT — Copyright (c) 2026 Serhii Matrunchuk

Ченджлог

3.4.1Релиз26.2 · 22 августа 2026 г.

Minecraft 26.2 · Java 25 · Fabric Loader 0.19.3

Artifact: copy_paster-3.4.1+26.2.jar

Added

  • /copy x1 y1 z1 x2 y2 z2 — copy a region from coordinates (chat naming; needs copypaster.copy). Works without client keybinds.
  • /copyhelp — in-game command summary for copy, paste, undo, and transforms.
  • /copyblocks <name> [page] — block shopping list (paginated); needs copypaster.copyinfo.
  • Default [ / ] keybinds on fresh installs; one-time hint if keys are still unbound.
  • Web UI import — upload .nbt in the browser (POST /api/structures/{name}); export unchanged (Download .nbt).
  • MIT license — open source under LICENSE.

Changed

  • Web save-after-edit — keeps block entity NBT (chests, banners, skulls) when saving palette/voxel edits.
  • Web download — warns if you have unsaved edits (downloads last saved file on disk).
  • Modrinth release notes — full changelog inline on every upload (no “see CHANGELOG.md” stub).

Install

Pick the JAR for your Minecraft version — server and every player who copies must use the same line:

  • copy_paster-3.4.1+1.21.11.jar — Java 21
  • copy_paster-3.4.1+26.2.jar — Java 25

Requires Fabric Loader 0.19.3+ and Fabric API. Bind [ and ] under Options → Controls → Copy Paster (or use /copy).

3.4.1Релиз1.21.11 · 22 августа 2026 г.

Minecraft 1.21.11 · Java 21 · Fabric Loader 0.19.3

Artifact: copy_paster-3.4.1+1.21.11.jar

Added

  • /copy x1 y1 z1 x2 y2 z2 — copy a region from coordinates (chat naming; needs copypaster.copy). Works without client keybinds.
  • /copyhelp — in-game command summary for copy, paste, undo, and transforms.
  • /copyblocks <name> [page] — block shopping list (paginated); needs copypaster.copyinfo.
  • Default [ / ] keybinds on fresh installs; one-time hint if keys are still unbound.
  • Web UI import — upload .nbt in the browser (POST /api/structures/{name}); export unchanged (Download .nbt).
  • MIT license — open source under LICENSE.

Changed

  • Web save-after-edit — keeps block entity NBT (chests, banners, skulls) when saving palette/voxel edits.
  • Web download — warns if you have unsaved edits (downloads last saved file on disk).
  • Modrinth release notes — full changelog inline on every upload (no “see CHANGELOG.md” stub).

Install

Pick the JAR for your Minecraft version — server and every player who copies must use the same line:

  • copy_paster-3.4.1+1.21.11.jar — Java 21
  • copy_paster-3.4.1+26.2.jar — Java 25

Requires Fabric Loader 0.19.3+ and Fabric API. Bind [ and ] under Options → Controls → Copy Paster (or use /copy).

3.4.0Релиз26.2 · 22 августа 2026 г.

Minecraft 26.2 · Java 25 · Fabric Loader 0.19.3

See CHANGELOG.md for full release notes.

Server and copying clients must use the JAR built for their Minecraft version.

3.4.0Релиз1.21.11 · 22 августа 2026 г.

Minecraft 1.21.11 · Java 21 · Fabric Loader 0.19.3

See CHANGELOG.md for full release notes.

Server and copying clients must use the JAR built for their Minecraft version.

3.3.0Релиз26.2 · 22 августа 2026 г.

Minecraft 26.2 · Java 25 · Fabric Loader 0.19.3

Forward port from 26.1.2. Server and copying clients must use this JAR (not the 1.21.11 build).

Added

  • Multi-version support — Stonecutter builds for 26.2 and 1.21.11 from one repo.

Changed

  • Primary dev target is 26.2 (was 26.1.2).
  • JAR names: copy_paster-3.3.0+<minecraft>.jar.
  • Fabric Loader 0.19.3; updated for 26.2 APIs.

Install

  • copy_paster-3.3.0+26.2.jar on server + client (for keybind copy).
  • Requires Java 25 on server and client.

Saved structure .nbt files work across 1.21.11 and 26.2 builds.

3.3.0Релиз1.21.11 · 22 августа 2026 г.

Minecraft 1.21.11 · Java 21 · Fabric Loader 0.19.3

First Modrinth release for the 1.21.x audience. Server and copying clients must use this JAR (not the 26.2 build).

Added

  • Multi-version support — dedicated 1.21.11 build alongside 26.2 (Stonecutter).
  • All 3.2.x features on this line: [ / ] copy, paste rotate/mirror/noair, persistent undo, /pasteselect, post-paste transforms, LuckPerms nodes, optional web UI.

Install

  • copy_paster-3.3.0+1.21.11.jar on server + client (for keybind copy).
  • Bind [ and ] under Options → Controls → Miscellaneous.
  • Requires Java 21+.

Saved structure .nbt files work across 1.21.11 and 26.2 builds.

2.1.0Релиз26.1.2 · 17 мая 2026 г.

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.

Minecraft 26.1.2 Fabric Loader 0.19.2 Java 25 Version 2.1.0

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 — /pasteundo restores the last paste (in-memory until restart)
  • Ukrainian (uk_ua) — full UI strings alongside English
  • Configurable highlights — config/copypaster.yml or 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

  1. Stand at the anchor point you want for this copy.
  2. Run /copy.
  3. Attack corner 1, then corner 2 (blue wireframe follows your crosshair).
  4. Use (right-click) to cancel anytime.
  5. Type a structure name in chat (a–z, 0–9, _, -, max 64 chars). Type cancel to 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

  1. Stand in the same relative spot you used when copying.
  2. /paste <name> — confirm with /paste <name> confirm if the ghost preview warns about overwrites.
  3. 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.

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