Java vs Bedrock Seeds

Java and Bedrock seeds are only partly compatible: the same 64-bit seed gives you the same terrain and the same biomes on both editions, but structures, features, carver caves and mob spawns generate differently. So a Java seed on Bedrock looks like the same land, but villages, temples and most other structures will be in other places.

What is the same between Java and Bedrock seeds?

The Minecraft Wiki says seeds are "somewhat compatible" between the two editions. The part that matches is the big picture: the shape of the land and which biome goes where.

That means if a friend on Java finds a great mountain range next to a cherry grove, you can type the same seed into Bedrock and walk to the same coordinates to find that same landscape.

What is different between Java and Bedrock seeds?

Everything that is placed on top of or into the terrain can differ. The wiki lists these:

World part	Java vs Bedrock with the same seed
Terrain shape	Same
Biomes	Same
Structure placement (villages, temples, etc.)	Different
Features, also called decorators	Different
Carver caves	Different
Mob spawns	Different
Slime chunks	Different (see below)

So when a seed video says "there is a village at spawn", check which edition it was made for. On the other edition, that village is very likely somewhere else, or not there at all.

Are any structures in the same place on both editions?

A few. The wiki's trial chambers page says trial chambers are one of the only structures that generate in the same locations on Java and Bedrock. For most other structures, expect different positions.

If you are not sure, confirm in-game. In a test world with cheats on, use /locate structure minecraft:<id> on Java, and check the result before you travel.

How are seeds stored on each edition?

Both editions turn every seed into a number. The details differ a little:

Topic	Java Edition	Bedrock Edition
Seed size	64-bit signed integer	64-bit seeds supported when creating worlds since 1.18.30
Text seeds	Converted to a 32-bit number with hashCode()	Same number as Java in our tests
Where to see the seed	/seed in chat	Edit world screen
/seed without cheats	Works in singleplayer	No /seed command

Before 1.18.30, Bedrock worlds could only be created with smaller seeds. Since then, you can create Bedrock worlds with the full 64-bit seeds that Java uses, which is what makes matching terrain possible for any Java seed.

One practical note for text seeds: on Java, a word like glacier is turned into a number with Java's hashCode() method. In our tests on the official Bedrock server, Bedrock turned text into the same number, so the same word gives the same terrain and biomes on both editions. Sharing the number is still the safest way. Our guide on what a Minecraft seed is explains text seeds in more detail.

How do I find my seed on Java and Bedrock?

• Java Edition: type /seed in chat. The wiki says it works in singleplayer even with cheats turned off. Click the number to copy it.
• Bedrock Edition: there is no /seed command. Open the Edit world screen for your world, where the seed is shown.

For servers and other cases, see how to find your seed.

Are slime chunks the same on both editions?

No, and this is one of the biggest practical differences. According to the wiki:

• Java Edition: which chunks are slime chunks depends on the world seed. Every world has its own pattern.
• Bedrock Edition: slime chunks are at the same coordinates in every world, whatever the seed.

Our slime chunk finder is built for Java Edition, where you need your seed to work them out.

Which MC Seed Maps tool should I use for each edition?

Because terrain and biomes match but structures do not, we split our maps by edition.

You play	Use	What it shows
Java Edition	Seed map	Biomes and structure layers for Overworld, Nether and End, Java 26.3 back to 1.18
Bedrock Edition	Bedrock seed map	Biomes only
Java Edition	Slime chunk finder	Slime chunks for your seed
Java Edition	Biome finder	Nearest biome of a chosen type

All versions on the Java seed map are labelled Verified: we tested each one against the real game. The Bedrock seed map is Verified too: we checked its biomes against the official Bedrock server. It deliberately leaves out structures, because showing Java structure positions to Bedrock players would send them to the wrong places.

On the Java map you can click a structure marker to copy a /tp command, mark places as visited, and share a link to exactly what you are looking at. Positions are predictions based on world generation, so confirm important ones with /locate structure minecraft:<id> in a test world before a long trip.

Can I play the same seed with friends on different editions?

You can share the land, but not the structures. If a Java player and a Bedrock player both create a world with the same 64-bit seed:

• Mountains, oceans and biomes line up, so "meet at the big mesa at X, Z" works.
• Villages, temples and most other structures will not line up, so "the village at spawn" may only exist for one of you.
• Carver caves and features (decorators) will differ.

For the smoothest experience, share the number form of the seed and the game version, and use the map that fits each player's edition.

Quick summary

• The same 64-bit seed gives the same terrain and biomes on Java and Bedrock.
• Structures, features, carver caves and mob spawns differ; trial chambers are a rare exception for structures.
• Java seeds are 64-bit; Bedrock supports 64-bit seeds for new worlds since 1.18.30.
• Java: /seed. Bedrock: Edit world screen.
• Slime chunks follow the seed on Java but are fixed on Bedrock.
• Use the seed map for Java and the Bedrock seed map for Bedrock biomes.