Feed the Mods Minecraft Seed Map vs SeedFinder

Feed the Mods Minecraft Seed Map is a free web tool for exploring worlds generated from Minecraft seeds. It maps biomes, structures, slime chunks, and coordinates using separate Java and Bedrock generation rules. The map combines more than 30 structure finders, including villages, strongholds, ancient cities, fortresses, bastions, and End cities. It advertises support for 14+ Java versions, Bedrock, Large Biomes, and the Overworld, Nether, and End. A live cursor readout shows biome information, while coordinate tools copy X/Z values or a /tp command. Signed-in users can sync markers, notes, and explored structures across devices and create read-only sharing links; signed-out users keep markers on their device. The map preserves views in links and calculates generation from seed settings rather than editing saves. It targets vanilla content, not ores or modded structures. Custom generation, mods, datapacks, or upgraded explored chunks can make results differ from the game.

SeedFinder helps Minecraft players locate structures near a world seed and player position, while SeedCracker searches for Bedrock seeds matching structures around supplied coordinates. Listed targets include villages, temples, ocean structures, ancient cities, mansions, portals, buried treasure, mineshafts, trail ruins, and trial chambers. The SeedFinder console runs scans in a browser using WebAssembly, without an account, key, or download. Its REST API accepts GET or POST requests and returns JSON, with examples for Python, Lua, and Node.js. The hosted API allows 60 requests per IP per minute, caps scan radius at 1,000 chunks, and returns no more than 200 results. An integration can display nearby structures in an in-game overlay through Flarial Client. SeedCracker requires coordinates for at least four structures. It also runs in the browser, but its hosted HTTP API is offline; the documented HTTP API runs on a local server. The site says browser scans run locally without connecting to the Minecraft world or a third-party seed map. The listed Free plan costs nothing.