MCA Selector and WorldEdit both get called “Minecraft world editors”, but they work on opposite sides of the game. WorldEdit is a free mod/plugin that runs inside Minecraft — you stand in the running world and build, copy and brush terrain with commands and selection tools. MCA Selector is an external desktop tool: the game is closed, and it operates on the world’s chunk and region files in bulk. Which one is “better” depends entirely on whether your job happens live in the game or offline across a whole world.
The short answer
- Choose WorldEdit to build while you play: copying structures, pasting schematics, filling volumes, brushing terrain — with the result visible instantly in 3D, on single-player or on a server you administer.
- Choose MCA Selector for offline world maintenance: pruning or resetting chunks by filter, deleting terrain in bulk, shrinking a world before an update, or batch-editing chunk fields across a whole save.
- On a server, they split the work: WorldEdit for in-game jobs while the server runs, MCA Selector during a maintenance window with the server stopped. Details below.
Side-by-side
| MCA Selector | WorldEdit | |
|---|---|---|
| Where it runs | External desktop tool; the world must be closed while you edit | Inside the game, as a mod (Fabric/Forge) or server plugin (Bukkit/Spigot and similar) |
| Editions | Java Edition world saves | Java Edition, in-game |
| What it edits | Whole chunks and regions selected on a top-down map, plus chunk fields in batch | Blocks in a selection you make in the world, using commands and tools |
| Typical jobs | Prune/reset chunks, delete by filter, export/import chunks, defragment region files | Copy/paste builds, fill and replace volumes, brush terrain, schematics |
| Works on a running server world? | No — stop the server and back up first | Yes — it is designed to be used in a live world |
| Price | Free | Free |
| Licence | MIT | GPLv3 |
Where WorldEdit wins
- Building in the moment. You see every change in 3D as it happens and can walk through the result immediately. MCA Selector edits a map view of files; it is not a building tool and has no way to place blocks visually.
- Server administration in-game. As a plugin, WorldEdit fits the permissions and workflow of a running server — fixing a griefed area or pasting a spawn build without taking the world offline.
- Fine-grained creative edits. Brushes, masks and schematic pasting are built for shaping relatively small areas precisely — the opposite end of the scale from whole-region operations.
Where MCA Selector wins
- Whole-world operations. “Delete every chunk that was only loaded for a few minutes” or “reset all terrain outside our bases before the update” is a filter query away — see the chunk filter guide and the pruning guide. Doing the same chunk-by-chunk in game is not realistic.
- No world needs to be loaded. Maintenance happens on the files directly, which is also why a backup is non-negotiable: edits are written straight to disk.
- Maintenance extras WorldEdit does not aim at: exporting chunks to another world, saving selections as CSV, defragmenting region files to reclaim space, and a CLI mode for repeatable jobs.
The server split, concretely
If you run a Java server, the practical division looks like this. Day to day, WorldEdit handles the in-game work: staff building, repairs, pasting structures, with the server online. Periodically — before a major Minecraft update, or when the world file has ballooned — schedule a maintenance window: stop the server, back up the whole world folder, open it in MCA Selector to reset or delete the chunks nobody uses, then restart. Never point MCA Selector at a world a server is actively writing to: the server’s own saves would fight the external edits, and the last writer wins.
Whichever tool you pick, back up first: world editors change your save files directly. Close Minecraft (and stop your server, if the world is on one), copy the whole world folder somewhere safe, and only then start editing.
Pick by task
| Your task | Pick |
|---|---|
| Build or copy a structure while playing | WorldEdit |
| Brush terrain or paste a schematic in-game | WorldEdit |
| Fix a small area on a live server | WorldEdit |
| Prune/reset chunks across a whole world | MCA Selector |
| Delete chunks matching a filter (age, version, biome…) | MCA Selector |
| Shrink a world file before an update | MCA Selector |
| Batch-edit chunk fields offline | MCA Selector |
Download MCA Selector 2.9
If MCA Selector is the tool that fits your job, get the current release from the MCA Selector download page — the Windows installer, the cross-platform .jar, the macOS .dmg and the Linux .deb/.rpm, every button pointing at the official GitHub release files with the SHA-256 checksum listed, plus a clearly labelled site mirror as a fallback. It is free and open source under the MIT licence.
One last backup reminder: keep the copy of your world you made before editing until you have loaded the edited world in Minecraft and confirmed it looks right. Deletions and NBT changes in MCA Selector are permanent once applied.
Related guides
The other comparisons in this series: