World Preview Mod allows you to visualize the world before it is generated. When creating a new world, you’ll have access to a new preview tab. When opened, it selects a random seed and creates a biome map. The preview is compatible with third-party mods that modify Overworld generation.
Features:
- Compatible with most world generation mods.
- Tested with:
- Terralith
- Biomes O’ Plenty
- Persistent seed storage
- Highlight specific biomes
- Highly configurable and extendable
- CPU usage control: limit cores in Settings → General.
Compatibility Notes
- Compatible with most mods, including those adding biomes and dimensions.
- TerraFirmaCraft (TFC): Supported, but the Y-intersection view appears white due to TFC’s generator not providing base column data.
Usage
- World Preview adds a new Preview tab to the Singleplayer menu.
- Opening the tab generates a random seed and displays a biome map.
- By default:
- Only the Overworld is generated.
- Structures are hidden.
- No heightmap is shown.
These settings can be changed in Settings (top-left button).
- When enabled:
- Structure sampling allows toggling structure visibility.
- Height sampling switches between the biome map and a colorized heightmap.
- Y-layer sampling shows the current y-layer and one lighter layer below.
- Supports opening the preview in-game for single-player worlds (experimental).
How to Use
- Move the preview: Click and drag to move along the X and Z axes.
- Scroll: Moves through Y-levels (up/down), useful for exploring cave biomes.
- Zoom: Adjust in Settings → Resolution → Visual size of a chunk.
- Load sequence when moving:
- Unsampled biomes
- Structures (if enabled)
- Heightmap (if enabled)
- Adjacent Y-layers (if enabled)
Screenshots:
World Preview Mod Download Links
For Minecraft 1.21.1, 1.21
Forge Version: Download from Server 1 – Download from Server 2
Fabric/Quilt Version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.6
Forge Version: Download from Server 1 – Download from Server 2
Fabric Version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.4
Forge Version: Download from Server 1 – Download from Server 2
Fabric Version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.2
Forge Version: Download from Server 1 – Download from Server 2
Fabric Version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.1
Forge Version: Download from Server 1 – Download from Server 2
Fabric Version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
World Preview Mod (1.21.1, 1.20.1) – Preview A Map/Seed in The New World Screen is a free Minecraft Java mod. Compatible with Minecraft 1.21.1, 1.20.1. Download it and open it directly in the game.