biomed

biomed is a map-based editor for changing biomes in Minecraft Java saves. It suits players who want to redraw biome regions and adjust snow or ice, rather than reshape terrain or edit entities. Its narrow focus is useful, but it is not a general-purpose world editor.

Overview

biomed opens Minecraft saves with a level.dat file and region directory. You can load a save through File > Open World or choose the region directory manually, then write changes with File > Save. Because that workflow changes world data, follow the README’s advice to back up the map first.

The boundary is clear: biome and region editing are supported, while terrain and entity editing are not. That makes biomed a sensible choice for changing the biome assigned to parts of a map, but the wrong tool for rebuilding landscapes or changing what lives in them.

Key features

Fill and Draw tools: Select a biome and apply it on the map with either tool. This gives biome changes a direct, visual workflow; batch operations are also supported for work beyond a single isolated edit.

Biome and map views: Switch between a view of biome assignments and a map view. The separate perspectives keep the focus on biome changes without making biomed a terrain editor.

Snow and ice adjustment: Fix Snow/Ice melts snow and ice in warm biomes and adds it in cold ones. It is a practical companion to biome changes, but its effects are limited to those surface conditions.

Pricing

biomed is free under the MIT license: free. The license permits use, copying, modification, publication, distribution, sublicensing and sale, subject to its conditions. There is no paid plan to weigh against the free option; the software is provided “as is,” without warranty.

Platforms

biomed supports Linux, Windows and macOS, and targets Minecraft Java saves. Precompiled downloads are listed for 64-bit Linux and 32-bit Windows. The GTK 2.x requirement is an important compatibility check, particularly if you expect a ready-to-run build on another platform.

Who it's for

Choose biomed if you need to change biome assignments in a Java world and want map-based Fill and Draw tools plus a way to correct snow and ice. It is less suitable if the job involves terrain, entities or a world format beyond saves built around level.dat and a region directory.

Pros and cons

Pro — focused biome workflow: Fill and Draw tools, two map views and batch operations address biome-region work directly.

Pro — useful snow and ice correction: The dedicated tool adjusts snow and ice for warm and cold biomes, complementing a biome change.

Con — limited editing scope: No terrain or entity editing means users needing broader world changes must choose another editor.

Con — setup and save caution: GTK 2.x is required, and editing writes to a world save, so compatibility and a backup deserve attention before starting.

Alternatives

For other options, see Minecraft World Editors. MCBE Inventory Editor is another free choice if you want an editor available on Linux, macOS, Windows, the web or self-hosted environments. Chunker is free and open source under MIT, with its code on GitHub. MCA Selector is a free alternative with Windows, macOS, Linux and universal JAR builds. Minecraft World Trimmer is free under the MIT license and provided as-is without warranty. WorldPainter is free and open source under GPL version 3. MCA JSON offers free open-source command-line tools and a JavaScript library for MCA/Anvil and NBT files. NBTExplorer is another free option. Bedrock NBT Editor is free on Android, iOS and the web, making it the platform-specific alternative among these choices.

Verdict

Pick biomed when the task is specifically to redraw biome regions in a Minecraft Java save and optionally bring snow and ice into line with the new biomes. Its focused map tools and free MIT license make that use case straightforward; look elsewhere for terrain or entity edits, or if GTK 2.x and the available precompiled downloads do not suit your setup.