Super-basic Minecraft Bedrock NBT Editor

What Super-basic Minecraft Bedrock NBT Editor is

Super-basic Minecraft Bedrock NBT Editor is a free Windows utility for changing selected settings in a Minecraft Bedrock world's `level.dat` file. It edits the world name, game mode, difficulty, seed, spawn position, common gamerules, ability flags, and raw NBT values stored in that file. Its Re-enable Achievements action changes six listed experiment and creative-mode NBT flags to 0. However, the README notes that `commandsEnabled` and `experimentalgameplay` may remain set to 1 and can still block achievements. The editor does not modify the save's `db\` directory, which contains LevelDB data, so its scope is limited to `level.dat`. On launch, the script automatically loads the first `level.dat` it finds under the current folder. Changes made with the apply controls remain in memory until Save writes them to the file; each save creates a timestamped backup beside the world file. Start it with the included `run_bedrock_nbt_editor.bat` file or run `python .\bedrock_nbt_editor.py`. The repository lists an MIT license and no releases or packages. It does not provide region, terrain, entity, or batch editing.

Who it suits

This editor suits Windows users who need to change selected Minecraft Bedrock world settings or raw NBT values in `level.dat`. It may also suit users adjusting the listed achievement-related flags, provided they understand that other settings can still block achievements.

Limits

The editor only changes data in `level.dat`; it does not edit the save's `db\` directory. Its achievement action may leave `commandsEnabled` and `experimentalgameplay` set to 1, which can still block achievements.

Getting started

1. Open the project page on GitHub.
2. Use the included `run_bedrock_nbt_editor.bat` file, or run `python .\bedrock_nbt_editor.py`.
3. The script loads the first `level.dat` it finds under the current folder.
4. Make changes with the apply controls.
5. Click Save to write changes and create a timestamped backup beside the world file.

Verdict

Choose this editor if you need to change supported Bedrock world settings or raw NBT in `level.dat` on Windows. Its focused file scope and automatic backups make that workflow clear. Look elsewhere if you need to edit the `db\` data or other world content, or if the remaining achievement flags are blockers.