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Crafty Seed Map

crafty.gg

Free plan Web
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Spec score 7.8 #8 of 35 in Minecraft Seed Finders

What it is

Crafty Seed Map is a free web tool for Minecraft Java players who want to inspect seed terrain and locate biomes, slime chunks, and structures. It accepts numeric seeds and text seeds, hashing text as the game does, and can display the Overworld, Nether, and End. A nearest-search function works outward from an origin in a spiral and checks structure candidates against biome requirements. Named, colored markers are stored in the browser for each seed, while a shareable URL preserves the seed, viewport, visible layers, and biome highlight. World generation runs locally in the browser, and the seed is not sent to a server. The biome layer uses a WebAssembly port of cubiomes, and structure locations are revalidated against biomes. Supported versions are Java Edition 1.18.2, 1.19.4, 1.20.6, 1.21.1, and 1.21.3; Bedrock Edition is not supported. The map is described as mobile-first and includes pinch-to-zoom controls, with no ads. Buried treasure, mineshafts, geodes, desert wells, and end gateways appear only at sufficiently close zoom levels.

Spec sheet

Purpose
Maps biomes, slime chunks and structures for Minecraft Java seeds.Read 5 Oct 2026 · crafty.gg
Intended users
The tool is for Minecraft Java players who want to inspect seed terrain and plan around biome and structure locations.Read 5 Oct 2026 · crafty.gg
Support
The site lists [email protected] as its contact email.Read 5 Oct 2026 · crafty.gg
Ads
The map is described as having no ads.Read 5 Oct 2026 · crafty.gg
Dimensions
The map can show the Overworld, Nether and End.Read 5 Oct 2026 · crafty.gg
Feature limit
Buried treasure, mineshafts, geodes, desert wells and end gateways appear only when zoomed in far enough.Read 5 Oct 2026 · crafty.gg
Local processing
The page says world generation runs locally in the browser and the seed is never sent to a server.Read 5 Oct 2026 · crafty.gg
Markers and sharing
Named, colored markers are saved in the browser per seed, and the URL captures the seed, viewport, layers and biome highlight for sharing or bookmarking.Read 5 Oct 2026 · crafty.gg
Mobile use
The map is described as mobile-first and has pinch-to-zoom controls.Read 5 Oct 2026 · crafty.gg
Security and privacy
The site privacy policy says it uses reasonable administrative, technical and physical safeguards, while noting that data transmission cannot be guaranteed secure.Read 5 Oct 2026 · crafty.gg
Seed input
Accepts numeric or text seeds, with text seeds hashed the way the game does.Read 5 Oct 2026 · crafty.gg
Structure search
A nearest-search tool spirals from an origin and biome-validates structure candidates.Read 5 Oct 2026 · crafty.gg
Technology
The biome layer uses a WebAssembly port of cubiomes, and structure positions are revalidated against biomes.Read 5 Oct 2026 · crafty.gg
Version support
The map supports Java Edition 1.18.2, 1.19.4, 1.20.6, 1.21.1 and 1.21.3; Bedrock Edition is not supported.Read 5 Oct 2026 · crafty.gg

Plans and prices

Free Free Free in-browser seed viewer · Java Edition only · supports Java 1.18.2, 1.19.4, 1.20.6, 1.21.1 and 1.21.3 Read 5 Oct 2026 · crafty.gg

Every Crafty Seed Map plan and price →

Strong points and limits

Strong points

  • Shows the Overworld, Nether, and End.
  • Stores named, colored markers per seed in the browser.
  • Share URLs preserve map view and layer settings.
  • Seed processing runs locally in the browser.
  • Described as mobile-first with no ads.

Limits

  • Bedrock Edition is not supported.
  • Several structure types appear only at close zoom.
  • Only five listed Java versions are supported.

Who it suits

The map is for Minecraft Java players who want to explore seed terrain or plan around biome and structure locations. It may suit mobile users who want pinch-to-zoom controls.

Verdict

Crafty Seed Map combines local seed viewing with biome and structure searches, plus markers and shareable map views. Its edition and version support is limited to the listed Java releases.

Where Specifiction places it

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