Overview

SeedLander combines terrain and biome analysis with structure searches, spawn filters, ore prediction, slime chunk calculations, and Nether and End maps. It supports Java Edition, including Java Large Biomes, as well as Bedrock Edition. The breadth makes it useful both for scouting a world and for looking up specific features, rather than just viewing a map.

The tools run in a browser through WebAssembly, processing seeds on the user's device instead of sending them to SeedLander's servers. That is a practical privacy benefit for seed analysis. Structure searches cover more than 25 types, including villages, strongholds, temples, mansions and monuments. SeedLander says most Java and Bedrock structure results are 97%+ accurate, but coordinates are predictions, not guarantees; players should confirm important locations in-game.

Key features

Maps and finders

Biome and structure search, map previews and spawn filters help narrow down terrain and locations, while ore prediction and slime chunk calculation extend the toolkit to resource and farm planning. The range is a strength for players who want several kinds of seed analysis together. It is less suitable for anyone who needs every predicted location to be exact.

World tracking and teams

Basic accounts can save custom markers and portal pairs; Premium removes those caps and adds ore tracking, structure completion tracking, notes and an activity log. The Team add-on extends Premium with shared markers and portals, collaborative notes, five roles and configurable permissions. Unlimited team members is generous for shared worlds, though teams must pay the add-on charge on top of Premium for each world.

The map, finders and account pages are touch-friendly on phones and tablets, so the browser service remains usable away from a computer. A dedicated mobile app is on the roadmap, but SeedLander currently runs on the web.

Pricing

The Basic plan is free and includes all seed tools, 10 custom markers and three saved portal pairs. Those allowances suit occasional exploration, but players organizing several builds or portals may reach the caps. A free trial is offered for Premium World; the paid plan provides the same unlimited marker and portal capacity plus ore tracking, structure completion tracking, notes and activity logs.

Premium World costs £1.99/mo per world, billed monthly, with the first 14 days free. The per-world term matters: players tracking multiple worlds pay the monthly price for each one. The Team Add-on costs £2.99 per month per world on top of Premium. It is for groups that need shared planning and permissions, not a standalone cheaper route to the team tools. Paid Premium or Team subscriptions require the account holder to be at least 18; accounts require users to be at least 13.

Platforms

SeedLander is a web service for desktop, phone and tablet browsers, with support for Java Edition and Bedrock Edition. Touch-friendly pages make mobile access practical, but there is no dedicated mobile app currently.

Who it's for

SeedLander is a good fit for players who want a broad seed-analysis toolkit without installing software, especially those who value on-device seed processing or play across Java and Bedrock. The free tier is a sensible starting point for solo players with modest marker and portal needs. Premium suits players who actively track multiple features in a world; teams should weigh the additional per-world add-on cost. Players who need certainty rather than predicted coordinates should look elsewhere or verify results in-game.

Pros and cons

Broad coverage: Maps, finders, spawn filters, ore prediction and slime chunk calculations serve several planning tasks in one browser toolkit.
On-device processing: Seeds are not sent to SeedLander's servers for analysis.
Usable free tier: All seed tools are included, though markers and portal pairs are capped.
Predicted locations: Structure results can be useful leads, but even the stated 97%+ accuracy for most structures is not a guarantee.
Per-world recurring fees: Premium and the Team add-on can become a larger commitment when used across several worlds.

Alternatives

Minecraft Seed Finders is a useful directory of options if you want to compare seed tools before choosing.

Ezseed Minecraft Seed Finder is a free web option with no download or account requirement and supports Java 1.20–26.2 and Bedrock up to 26.30.
Chunkbase Seed Finder is another free web-based choice.
ChunkSeeds Seed Finder is free on the web and offers Java reverse search plus standard scans of up to 350,000 seeds per pass, without an account.
Seed Map Pro is the alternative to consider if you want a native iOS or macOS app; its free plan allows three saved seeds and up to 10 custom pins per map.
MC Seed View is a free option for Android, iOS and web.
MCSeedShare is a free web alternative.
Cubiomes Viewer is a free, open-source desktop option for Linux and Windows.
MC Seed Map Seed Finder is a free web alternative.

Verdict

Choose SeedLander if you want a wide range of Java and Bedrock seed tools in a browser, with on-device processing and a free tier that includes every seed tool. Its main trade-offs are that structure locations remain predictions and Premium charges recur per world; players who only need a free map or cannot accept uncertain coordinates should consider another option.

	ChunkCompass	SeedLander
Free plan	No	Yes
Free trial	No	Yes
Paid from	—	£1.99/mo
Open source	No	No
Platforms	Windows	Web
Terrain analysis	Yes	Yes
Biome search	Yes	Yes
Structure search	Yes	Yes
Map preview	Yes	Yes
Free plan	—	Yes
Edition support	—	both
Spawn filters	—	Yes

ChunkCompass vs SeedLander

ChunkCompass

SeedLander