MCWorldTools Single Player Editor
MCWorldTools Single Player Editor is a free browser tool for changing player data in Minecraft Java Edition singleplayer worlds.
What MCWorldTools Single Player Editor is
MCWorldTools Single Player Editor is a free browser tool for changing player data in Minecraft Java Edition singleplayer worlds. It edits health, hunger, experience, inventory, armor, Ender Chest contents, and position inside a level.dat file. The workflow is to select a file, make changes, download the result, and manually replace the original while Minecraft is closed. Files can be up to 10MB. The editor is intended for worlds storing player data in level.dat; server player information requires the separate Server Player Editor. Position changes cover X, Y, and Z coordinates, but not rotation or dimension. Hardcore item recovery needs a pre-death level.dat backup, although items can be added manually. Unknown NBT tags are preserved for modded data. MCWorldTools says processing occurs in the browser and save contents are not uploaded or stored. Its privacy policy says a player UUID is sent to display the associated username and skin. The tool runs without downloads on Windows, macOS, and Linux browsers.
Good
- Edits health, hunger, XP, and inventory
- Supports armor and Ender Chest changes
- Preserves unknown NBT tags
- Processes save files in the browser
- Accepts level.dat files up to 10MB
Watch out
- Only for singleplayer level.dat data
- Cannot change rotation or dimension
- Hardcore recovery needs a pre-death backup
- Modified files require manual replacement
Who it suits
It suits Java Edition singleplayer players who need to adjust saved player data locally in a browser. Modded worlds benefit from preservation of unknown NBT tags.
Verdict
This editor provides focused, browser-based changes for Java singleplayer saves while keeping save contents local. Its scope excludes server data and some position controls, so the separate server tool may be needed for multiplayer files.
Plans and prices
From MCWorldTools Single Player Editor's own pricing page, checked 10 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| MCWorldTools Single Player Editor | Free | Maximum file size: 10MB · For singleplayer worlds with player data in level.dat |
The facts
Each one read from MCWorldTools Single Player Editor's own pages, with the date it was checked.
What it does
- Compatibility
- MCWorldTools describes itself as a collection of browser based tools for Minecraft Java Edition and says its file editors work with any Minecraft version.checked 10 Oct 2026
- File size limit
- The editor accepts level.dat files up to 10MB.checked 10 Oct 2026
- File workflow
- Users upload level.dat, edit player data, download the modified file, and manually replace the original with Minecraft closed.checked 10 Oct 2026
- Item recovery limit
- Recovering items lost in hardcore requires a pre-death level.dat backup, though users can add items back manually.checked 10 Oct 2026
- Local processing
- MCWorldTools says world files are processed in the browser and are not uploaded, stored, or accessible to the site.checked 10 Oct 2026
- NBT preservation
- The editor preserves unknown NBT tags so modded player data can round-trip untouched.checked 10 Oct 2026
- Position editing
- Users can change X, Y, and Z coordinates, but cannot change rotation or dimension here.checked 10 Oct 2026
- Privacy detail
- The privacy policy says a player UUID from a save file is sent to the site to show the associated username and skin, while save-file contents remain local.checked 10 Oct 2026
- Purpose
- The browser based editor changes a singleplayer character’s health, hunger, XP, inventory, armor, Ender Chest, and position in a level.dat file.checked 10 Oct 2026
- Support
- The contact page says the team typically responds within 24–48 hours.checked 10 Oct 2026
- Supported files
- The tool is for singleplayer worlds where player data is stored inside level.dat; server player data uses the separate Server Player Editor.checked 10 Oct 2026
The company
- Maker identity
- The privacy policy describes MCWorldTools as a personal project.checked 10 Oct 2026
Where it runs
- Platform requirement
- The maker says the tools run in a browser with no downloads required.checked 10 Oct 2026
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