About SeedMapLab
What is SeedMapLab?
Updated 2026-11-14 · Java Edition 1.21.1 and 26.3 · Stats from 10,000 seeds on 26.3
A Minecraft seed map shows the biomes and structures generated by a world seed. SeedMapLab, a free Java seed map, lets you plan a base, compare locations, or choose where to explore.
How are the results checked?
We ran an open-source reimplementation of Java Edition world generation for 10,000 random seeds on version 26.3. Each distance starts at that world's spawn point.
Is this seed map accurate?
Yes, for the two supported versions. The map follows the selected version's world-generation rules. We checked ancient city coordinates from 31 seeds against the official Minecraft 1.21.1 server.
Not an official site
SeedMapLab is not affiliated with Mojang or Microsoft. Minecraft Usage Guidelines