Change the World Seed on Your Minecraft Server
How to set or change the world generation seed on your Minecraft Java server.
The world seed determines how the world generates — terrain, biomes, structures, and ore placement.
Setting a Seed
In server.properties:
level-seed=your_seed_hereSeeds can be text strings or numbers. Leave blank for random.
Changing an Existing World's Seed
Changing the seed does not regenerate an existing world. To use a new seed:
- Stop your server
- Change
level-seedinserver.properties - Delete or rename the
worldfolder (this resets the world) - Start the server — a new world generates with the new seed
⚠️ Warning: Deleting the world folder erases all player builds and progress. Back it up first.
Finding Your Current Seed
In-game with OP permissions:
/seedPopular Seeds
Search for seeds on sites like Minecraft Seeds or Chunkbase.
Related Guides
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