Minecraft Seed Viewer & Biome Finder
Free Java Edition seed viewer and biome finder — paste any seed to preview biomes, then locate strongholds, woodland mansions, ancient cities, trial chambers, buried treasure, witch huts, villages, and more. Defaults to Java 26.2 (Mounts of Mayhem), powered by Cubiomes worldgen (the same approach Chunkbase uses).
How to use this seed viewer
- Enter your Java Edition seed (numbers or text) and pick your game version.
- Click Generate map to run the biome finder — pan and zoom freely.
- When you need villages or strongholds, click Find structures to scan only the area on screen.
- Drag to pan. Use the + / − controls on the map to zoom.
- Toggle layer chips to show or hide villages, strongholds, temples, and other markers.
- Copy a
/tpcommand or click Share link to copy a URL with your seed, version, and map position.
Biome finder & structure map
- Biome finder colors
- See oceans, deserts, jungles, snowy peaks, and more at a glance — hover for biome names.
- Strongholds & villages
- Ring-numbered strongholds plus villages, temples, outposts, and mansions near your view.
- 1.19+ structures
- Ancient cities, trial chambers, trail ruins, and ruined portals where your version supports them.
- World spawn
- Red marker for approximate spawn — useful before you create the world.
Placement uses Cubiomes worldgen — the same family of algorithms Chunkbase relies on — so biomes and structure locations match Java Edition for supported versions. A few structures can still fail in-game on awkward terrain, the same caveat as other seed maps. For hand-picked seeds with screenshots, browse our curated seed directory.
Built-in structure finders (same seed viewer)
You do not need separate tools for each structure. Click Find structures on the biome finder map, toggle the layers you need, and pan to scan the area on screen. Every finder below uses the same seed, version, and shareable URL.
- Stronghold finder
Biome-validated stronghold rings with order labels — find the End portal before you create the world.
- Woodland mansion finder
Locate rare woodland mansions in dark forest biomes on your Java seed map.
- Ancient city finder
Find ancient cities under deepslate — useful for Warden farms and deep dark loot runs.
- Trial chamber finder
Preview trial chamber locations for 1.21+ seeds, including Mounts of Mayhem (26.2).
- Buried treasure finder
Toggle buried treasure on the structure layers to mark chest coordinates on beaches and coastlines.
- Witch hut finder
Find witch huts in swamps for witch farms, redstone, and potion ingredient farms.
- Village finder
Villages, desert temples, jungle temples, pillager outposts, and ocean monuments in one view.
- Trail ruins & ruined portals
1.20+ trail ruins and ruined portals — optional shipwreck and ocean ruin layers for coastal seeds.
- Biome map preview
Full overworld biome colors load first; structures scan only when you opt in for faster browsing.