SeedMapper
🟢 Updated this month⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
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🔍 Analysis
- 👍 0.2% endorsement rate
- 🏆 #813 of 1032 fabric mods in this game by downloads
📋 About This Mod
Always use the latest (stable) version of SeedMapper! If you want to play on an older version of Minecraft, use (https://modrinth.com/mod/viafabricplus). This mod allows you to use the latest features of SeedMapper, while still being able to play on older Minecraft versions.
# SeedMapper In-game Minecraft Fabric mod that allows you to do various things with the world seed. For reference, have a look at the (#features) this mod has. Keep in mind though, this mod requires you to have access to the seed. If the seed is not known, you could crack it using (https://github.com/19MisterX98/SeedcrackerX/) by 19MisterX98. For questions and support please head to my (https://discord.xpple.dev/).
## Installation 1. Install the (https://fabricmc.net/use/). 2. Download the (https://minecraft.curseforge.com/projects/fabric/) and move it to your mods folder: - Linux/Windows: `.minecraft/mods`. - Mac: `minecraft/mods`. 3. Download SeedMapper from the (https://modrinth.com/mod/seedmapper/versions/) and move it to your mods folder.
## IMPORTANT FOR 1. 21. 11 AND BELOW You need to have at least Java 23 installed to use this mod. I recommend to get Java 23 (or higher) from (https://adoptium.net/temurin/releases/?version=23). Next, configure your Minecraft launcher to use this release of Java.
- Vanilla launcher: Go to `Installations` -> `Edit` -> `More options` -> `Java executable`.
- MultiMC: Go to `Edit Instance` -> `Settings` -> `Java` -> `Java Installation`.
- PrismLauncher: Go to `Settings` -> `Java` -> `Java Runtime` -> `Auto-Detect...`.
- Modrinth App: Go to `Instance settings` -> `Java and memory` -> `Custom Java installation` -> `Browse`
Sometimes it may be necessary to click the option for skipping the Java compatibility check.
If you are on Windows, make sure to select `javaw.exe`, not `java.exe`.
If you run into issues, contact your launcher's support.
As of 26. 1 this step is no longer necessary.
## Features
Before using any of these commands, make sure the seed has been configured using `/sm:config Seed set
### Seed map Usage: `/sm:seedmap`.
Opens an explorable seed map based on the configured seed. You can move the map by dragging the mouse, and zoom in or out by using the scroll wheel. You can toggle what features are visible by clicking the feature toggles at the top of the screen. This command is especially useful in combination with the `/sm:source` command!
### Seed minimap Usage: `/sm:minimap `.
Displays a minimap based on configured seed in the heads-up display (HUD). Depending on whether the `RotateMinimap` config is enabled, the minimap will rotate with the player. The minimap displays the same features as the seed map (see above). Changing dimension will automatically update the minimap. The configs `MinimapOffsetX`, `MinimapOffsetY`, `MinimapWidth` and `MinimapHeight` can be used to further customise the minimap.
### Biome locating
Usage: `/sm:locate biome
Locates a given biome closest to the player. All biomes in all dimensions are supported.
### Structure locating
Usage: `/sm:locate feature
Locates a given structure closest to the player. All structures in all dimensions are supported. However, due to limitations in the underlying library, some structures (in particular desert pyramids, jungle temples and woodland mansions) may result in occasional false positives. For more advanced querying you can also use piece and variant data to further restrict the search. For example, the following command will search for end cities with ships: `/sm:locate feature structure end_city`.
### Ore vein locating Usage: `/sm:locate orevein (copper|iron)`.
Locates an (https://minecraft.wiki/w/Ore_vein) closest to the player. The coordinates of the first ore vein block found will be returned. After this, you can use [`/sm:highlight orevein [
### Loot locating
Usage: `/sm:locate loot
Locates chest loot closest to the player. All versions from 1. 13 onwards are supported. SeedMapper will search through the chest loot of structures to find loot that matches the item and enchantment conditions. Note that queries for unobtainable loot and illegal enchantment combinations are not prevented by the command. If a search is taking too long, you should probably cancel it using `/sm:stoptask`.
### Ore highlighting
Usage: `/sm:highlight block
Highlights the specified block in the world. All versions from 1. 13 onwards are supported. Due to high dependence on the [`OCEAN_FLOOR_WG`](https://minecraft.wiki/w/Heightmap#OCEAN_FLOOR_WG) heightmap, coal, copper and emerald ore locations may be off.
### Ore vein highlighting
Usage: `/sm:highlight orevein [
Highlights ore veins in the
📊 Mod Details
- Game
- Minecraft Mods
- Author
- xpple
- Version
- 26.2
- Downloads
- 119,301
- Endorsements
- 248
- Category
- fabric
- Created
- 5/25/2021
- Updated
- 9/6/2026
- Game Versions
- 26.2
- Tags
- game-mechanics, utility, worldgen
🔧 How to Install Minecraft Mods Mods
Download from Modrinth. Use Prism Launcher or drop into your mods folder.
📖 Full step-by-step install guide for Minecraft Mods →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Minecraft Mods commands, item IDs, and more.
❓ Frequently Asked Questions
Which Minecraft Mods versions does SeedMapper support?
The author lists 26.2. Other versions may work but are untested by the author.
What is the latest version of SeedMapper?
Version 26.2, published 2026-09-06 with 119,301 downloads recorded at the source.
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