Biome Painter
by JaaiDead
Biome Painter lets a player replace biomes in an already generated world, with saved regions that can be reapplied after a restart.
What it does
Biome Painter edits biomes at runtime, so a world does not have to be regenerated to change them. A player can replace one biome with another around the current position, convert a saved region to a new biome, or reapply a region that was stored earlier. Regions are saved automatically and survive restarts, which helps when a large biome project has to be resumed without repeating the same work.
The mod is a Fabric mod for Minecraft 1.20.1 and runs on client and server, so the server and every player need it. Edits made on the server reach every connected player, and developers can call a small API to extend Biome Painter. The code is not open source: the mod is released under All rights reserved. The latest Fabric file is 1.1.0 for 1.20.1, published on 2026-06-12.
Key features
Painting and converting regions
Commands paint, convert, inspect, delete and restore biome regions, and the most recent region can be undone.
Biome samples and IDs
Biome samples around the current position and the list of registered biome IDs can be displayed on screen.
Saved region management
Saved regions are listed with clickable delete actions, and a region standing in can be deleted directly.
Built-in help
A help menu is built into the mod and shows the available commands.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Fixing an accidental change
A mistake that turns part of a world into desert can be corrected by painting the area back to its original biome.
Large-scale biome projects
Regions converted in one session can be stored and reapplied later, so a project can continue after a restart.
Who it’s for: The mod suits server owners and map makers who want to reshape biomes in an existing world. Players on a server running it see the same biome changes, since the server keeps them synchronized.
Questions
Does Biome Painter require a new world?
Does Biome Painter have to be installed on both sides?
Which loader does Biome Painter use?
In the catalog
Biome Painter is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 34,764 mods support Minecraft 1.20.1.
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What the author says
BiomePainter is a runtime biome editing tool that lets you change biomes in existing worlds without regenerating terrain. It allows you to replace biomes in an area, store those changes as persistent regions, and reapply them later if needed. Regions are saved automatically and survive restarts, making it easier to…
Official listing
- Modrinth page
- modrinth.com/mod/biome-painter
- Owner
- JaaiDead
- Published
- 2026-06-06
- Updated on Modrinth
- 2026-06-12
- Facts verified
- 2026-10-15