Save the seed. Plan the world.
SeedLander is a free Minecraft toolkit — an interactive seed map, structure and ore finders, a Nether portal calculator, and world tracker for Java and Bedrock.
Save every world you play, track ores and structures as you explore, and share seed plans with your team — no mods, no downloads. Paste any seed below to open the interactive map, or create a free account to save your worlds.
What is SeedLander?
SeedLander is a free online toolkit for Minecraft players who want to get more out of their worlds. Every Minecraft world is generated from a seed — a number that determines where biomes, structures, ores and other features appear. SeedLander reads that seed and shows you what your world contains, without needing to install any mods or upload any files.
Whether you’re looking for the nearest stronghold on your survival server, trying to find diamonds without strip mining for hours, or planning a Nether portal network with your friends, SeedLander gives you the information you need to play smarter.
Why players use SeedLander
Minecraft seed tools that match what your world actually generates — not guesswork.
Accurate seed predictions
Villages, strongholds, ancient cities, trial chambers, ruined portals, ocean monuments — SeedLander shows you each one at the coordinates Minecraft will actually generate it. Tested across 100+ real worlds per edition.
Java + Bedrock Edition support
Both editions generate worlds differently — most tools only cover Java. SeedLander handles both, all the way back to 1.18, plus the Java Large Biomes world type.
Ore, biome and portal tools
Beyond structures: an ore finder (diamond, ancient debris, emerald, gold, copper), a biome overlay, a Nether portal calculator, and saved markers for team SMPs.
Jump straight to a tool
Each tool works with your Minecraft seed. No account needed to try.
Minecraft Seed Map
Interactive map with every structure, biome and dimension. Click a village or stronghold to jump to its coordinates.
Open the map →Minecraft Ore Finder
Predict diamond, ancient debris, emerald, gold, lapis, redstone, copper and iron vein positions.
Find ores →Nether Portal Calculator
Work out the matching Overworld / Nether coordinate pair for a portal that links correctly.
Calculate portals →Best Minecraft Seeds
Curated directory of seeds with mushroom island spawns, cherry groves, villages, mansions and more.
Browse seeds →Find every structure in your seed
Use our dedicated structure finders to track down the spots that matter in your Minecraft world — villages for trades, strongholds for the End portal, ancient cities for echo shards, fortresses for blaze rods. Each one uses your seed to show you where the nearest example is, so you can head straight there.
Stronghold Finder
The 3 strongholds nearest spawn — chunk coordinates, eye-of-ender count, and the route in.
Find strongholds →
Ancient City Finder
Deep Dark coordinates plus warden and shrieker positions. Bring soul lanterns.
Find ancient cities →
Nether Fortress Finder
Nearest fortress, blaze spawner positions, and what to take for the trip.
Find fortresses →
Woodland Mansion Finder
Mansion coordinates and the biome route to reach them. Totems of undying inside.
Find mansions →
Village Finder
Every village within range — plains, savanna, taiga, snowy and desert biomes.
Find villages →
Ocean Monument Finder
Monument coordinates with depth and biome pre-checked — ready for guardian farms.
Find monuments →Plus dedicated finders for Trial Chambers, Bastions, Shipwrecks, Buried Treasure, Jungle Temples, Pillager Outposts, Mineshafts and more.
Latest seeds in our directory
Hand-picked Minecraft seeds with structures, biomes and ores already mapped out.
Save the seed. Plan the world. Bring the crew.
SeedLander’s tools are free for everyone — but if you’re running a long-term world or an SMP, an account turns the seed map into your team’s shared planning HQ. Drop pins on every base, save your portal pairs, mark mined ore veins, and watch the activity feed update as your crew explores.
- ✓Free forever: 1 saved world, 10 markers, 3 portals, every tool.
- ✓Premium £1.99/mo per world: unlimited markers + portals, ore tracking, structures-complete, full activity log.
- ✓Team add-on +£2.99/mo: invite teammates with custom roles, shared markers, live activity feed.
A real Premium world — tap to view full size
How to find structures in a Minecraft seed
You don't need a mod, a client tweak or an Xbox-bound trick. Just a seed.
Paste your Minecraft seed
In Minecraft Java Edition, run /seed in chat. In Bedrock, it's shown on the world create screen or in world settings.
Paste the number into SeedLander's seed map.
Pick your edition & version
Java and Bedrock use different world generation, so the same seed produces different worlds. Pick the one you're playing — 26.3 for Java, 26.50 for Bedrock.
See structures, biomes & ores
Villages, strongholds, ocean monuments, woodland mansions, trial chambers, ancient cities — they all show up at their real coordinates. Switch to the Nether or End with one click.
Minecraft seed FAQ
Is SeedLander free to use?
Yes. The seed map, ore finder, portal calculator and structure search are all free with no account required. Optional Premium unlocks saving your worlds with unlimited markers and team planning for £1.99/month per world.
Does SeedLander work with Bedrock Edition?
Yes — Bedrock is fully supported. Bedrock worlds generate differently from Java worlds, and SeedLander handles both so results match exactly what your game produces.
Do I need to install a mod or resource pack?
No. SeedLander runs entirely in your browser. Nothing is downloaded, nothing touches your Minecraft install. Your seed never leaves your device unless you save it to a SeedLander account.
How accurate are the structure predictions?
SeedLander hits 97%+ accuracy for most structures on both Java and Bedrock Editions. Every prediction is checked against real Minecraft worlds before it ships, so what you see on the map matches what you find in the game.
Which Minecraft versions are supported?
Java: 1.16.5 through 26.3, plus experimental snapshots. Bedrock: 1.18.30 through 26.50, plus experimental betas. Older versions and Large Biomes world type are covered too.
Will my seed stay private?
Yes — tool pages run in your browser and never send your seed to our server unless you explicitly save it to a SeedLander account. Saved worlds are private by default; Premium adds an option to hide the seed from team members too.
Start solo. Go deep. Bring the crew.
Save your seeds, pin every find, track what you’ve mined. Free to start — £1.99 per month per world when you want the full toolkit, with your friends along for the ride.
Stake your claim
Save 1 world with 10 markers and 3 portals. Every map, finder and biome tool included.
£0 foreverUnlock the world
Unlimited markers and portals, mined-ore tracking, rich notes, full activity log on any one world.
14 days free · then £1.99/moBring the crew
Invite friends with custom roles. Shared markers, portals and a live activity feed for your SMP.
+£2.99/mo