World seeds are a string of numbers that Minecraft uses to recreate particular builds of a world when it generates. After you copy a world seed, you can share it with friends and use it to create new Worlds from the same base map. You can paste it into the world seed section of the World settings when creating a new world.
Copy a world seed from Java Edition
- Launch Minecraft: Java Edition.
- Select the Single Player button on the launch screen.
- Select the world with the seed you want to copy and select Play Selected World.
- Press the T key to open the chat.
- Type /seed into chat and press Enter to display the world seed.
- Press the T key again to open the chat.
- Select the seed number to copy it to your clipboard.
Copy a world seed from a Java Edition Realm
If the world seed you want to copy is for a world that only exists on a Realm, you'll need to enter the Realm world before you can copy the seed.
- Launch Minecraft: Java Edition.
- Select the Minecraft Realms button on the launch screen.
- Select the Realm with the world seed you want to copy and select Play.
- Press the T key to open the chat.
- Type /seed into chat and press Enter to display the world seed.
- Press the T key again to open the chat.
- Select the seed number to copy it to your clipboard.