JEI / REI / EMI WorldGen
by Larsens Mods
Players who want to see where ores spawn can use JEI WorldGen, a Fabric, Forge and NeoForge add-on that shows ore generation details inside JEI, REI or EMI.
What it does
JEI WorldGen reads the ore generation data of the loaded world and lists it in the recipe viewer, so ores can be checked by their generation stage and biome without searching the datapack files by hand. The author notes say it works with ores that use the minecraft:ore configured feature type and with ores generated during the underground ores and underground decoration stages.
Fabric API is required on every loader, so it must be installed next to JEI WorldGen. Because the add-on is client required and server optional, the client needs it to display the information, while a server can run without it. JEI WorldGen is released under the GNU General Public License v3.0 only and is open source. Files are published for 1.20.1, 1.21, 1.21.1 and 26.1 – 26.3, with 1.4.6 as the latest Fabric and NeoForge build and 1.4.5 as the latest Forge build for 1.20.1.
Key features
Ore generation details
Ore generation information is shown in the recipe viewer, covering where each ore spawns in the world.
Underground stages
The add-on covers ores generated during the underground ores and underground decoration stages.
Configured ore features
Ores using the minecraft:ore configured feature type are included in the displayed information.
Cached information on servers
Information received from a server is kept in the saved singleplayer world, so it stays visible after joining a server that lacks the mod.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Optional 2
Use cases
Who it’s for: Players who use JEI, REI or EMI to look up recipes and want the same viewer to show ore generation. Modpack authors checking ore spawns across several mods also benefit from a single view.
How it compares
Advanced Worldgen Info is a client and server mod under the MIT License, open source, with files for 1.20.1 – 26.3, and it covers the same worldgen topic. Universal Enchantment Info is client-side only under the MIT License, open source, for 1.20.1 – 26.3, and lists enchantments rather than ore generation. Advanced Loot Info is client and server, MIT License, open source, and covers loot tables.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| JEI / REI / EMI WorldGen | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client required, server optional | 2026-09-30 |
| Advanced Worldgen Info (AWI) | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client and server | 2026-10-07 |
| Universal Enchantment Info (JEI/REI/EMI/RRV) | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client-side only | 2026-10-01 |
| Advanced Loot Info (ALI) | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client and server | 2026-10-07 |
Questions
Does JEI WorldGen need Fabric API?
Does the server need JEI WorldGen?
Which recipe viewer does JEI WorldGen work with?
In the catalog
JEI / REI / EMI WorldGen is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Larsens Mods
Similar mods
What the author says
If you use the Fabric version of JEI WorldGen, you also need to install FabricAPI If both of these requirements are met, JEI WorldGen will be able to show the ore generation information for that mod without needing any specific support.
Official listing
- Modrinth page
- modrinth.com/mod/jei-worldgen
- Owner
- Larsens Mods
- Published
- 2026-04-09
- Updated on Modrinth
- 2026-09-30
- Facts verified
- 2026-10-15