BedrockCracker (gumark fork)

An updated fork of MiranCZ's BedrockSeedCracker, ported to modern Minecraft and tuned for speed.

A relatively small Fabric mod that finds the seed of the world you are playing in by analyzing bedrock patterns — no operator permissions, no cheats, works even on vanilla servers. Just uses the bedrock block; Java Edition only.

Requirements

Usage

1. Install the mod with Fabric Loader + Fabric API.
2. In your world, visit both the overworld and the nether. The mod silently collects bedrock patterns around you (512 pieces for the overworld, 128 floor + 128 roof for the nether). It tells you in chat when everything is collected.
3. Run /crackseed and wait. Progress is posted to chat with timestamps, percentages and an ETA; the result (or results) is printed when done.

Credits

• Original mod by MiranCZ — a Java port of 19MisterX98's Nether_Bedrock_Cracker (Rust) with world-seed cracking added on top.
• This fork maintained by gumark on github.

License

MIT — © 2026 gumark