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Server to Singleplayer World Converter

Server to Singleplayer World Converter is a free browser-based tool for turning Minecraft Java or Bedrock server worlds into singleplayer worlds.

Place
#11 of 18
Score
6.0
Server to Singleplayer World Converter's website

What Server to Singleplayer World Converter is

Server to Singleplayer World Converter is a free browser-based tool for turning Minecraft Java or Bedrock server worlds into singleplayer worlds. It accepts Java world ZIP files and Bedrock .mcworld or ZIP files, detecting the edition and format automatically. Players can transfer one chosen player's inventory, position, and experience, or begin fresh; in multiplayer worlds, only that player's data carries over. The converter preserves Java regions and chunks or the full Bedrock LevelDB, while changing player-related records. For Java worlds, it also removes certain Paper and Bukkit data and stale session information. The maker says the conversion runs in the browser without uploads, a backend, or analytics, and that its single HTML file supports offline use. Optional Java player-name lookups make network calls; Bedrock conversion does not. Bedrock players appear by XUID with an inventory preview. Java gamerules reset to defaults and must be reapplied. Some pre-1.16 Java worlds are unsupported, and the converted world should be opened in the server's Minecraft version. The project is licensed under PolyForm Noncommercial License 1.0.0.

Good

  • Accepts Java ZIP and Bedrock world files.
  • Detects edition and format automatically.
  • Can transfer one player's inventory, position, and experience.
  • Maker describes offline use and client-side conversion.

Watch out

  • Java gamerules reset to defaults.
  • Some pre-1.16 Java worlds are unsupported.
  • Converted worlds should use the server's Minecraft version.
  • Licensed for noncommercial use.

Who it suits

This tool suits Minecraft players who want to use a Java or Bedrock server world in singleplayer. It is especially relevant to players who want to carry over one player's inventory, position, and experience.

Verdict

The converter handles Java and Bedrock worlds and lets players choose whether to transfer one player's data. Check the stated compatibility limits and Java gamerule behavior before converting.

Plans and prices

From Server to Singleplayer World Converter's own pricing page, checked 3 Oct 2026.

All about pricing
PlanPriceWhat it gives you
FreeFreeBrowser based · Java and Bedrock world conversion

The facts

Each one read from Server to Singleplayer World Converter's own pages, with the date it was checked.

What it does

Accepted files
Accepts Java world ZIP files and Bedrock .mcworld files or ZIP files, and detects the edition and format automatically.checked 3 Oct 2026
Audience
The tool is for Minecraft players converting server worlds for singleplayer use, with Java and Bedrock workflows documented.checked 3 Oct 2026
Bedrock player IDs
Bedrock players are shown by XUID with an inventory preview because the maker says there is no open gamertag lookup.checked 3 Oct 2026
Compatibility limits
Pre-1.16 Java worlds that use flat RandomSeed without WorldGenSettings are unsupported, and the converted world should be opened in the server's Minecraft version.checked 3 Oct 2026
Game rules limitation
Java server gamerules reset to defaults because they are not stored in the world folder and must be reapplied manually.checked 3 Oct 2026
Integrations and libraries
The README credits NBTify, JSZip, and pako, and names PlayerDB, Crafthead, and Ashcon for optional Java name lookups.checked 3 Oct 2026
Java cleanup
It removes Paper and Bukkit datapack entries, paper-world.yml, stale session.lock, and Bukkit or Paper-only NBT tags.checked 3 Oct 2026
Java name lookup
Optional Java player name lookup uses PlayerDB, Crafthead, and Ashcon, and the converter can read usercache.json included in the ZIP.checked 3 Oct 2026
License
The project states it is licensed under PolyForm Noncommercial License 1.0.0.checked 3 Oct 2026
Multiplayer worlds
Only the selected player's data is carried over from a multiplayer world.checked 3 Oct 2026
Offline use
The maker describes the single HTML file as supporting full offline use.checked 3 Oct 2026
Player transfer
Can carry over a chosen player's inventory, position, and experience, or start fresh.checked 3 Oct 2026
Privacy
The maker says conversion runs client-side with no uploads, backend, or analytics; optional Java name lookups make network calls, while Bedrock conversion makes none.checked 3 Oct 2026
Purpose
Converts Minecraft Java or Bedrock server worlds into ready-to-play singleplayer worlds.checked 3 Oct 2026
World preservation
The converter preserves Java regions and chunks and the full Bedrock LevelDB, changing player-related records.checked 3 Oct 2026

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