BetterChunkBorders
by Cinnamonpuma
BetterChunkBorders draws chunk boundaries as customizable grid lines in the world, so players can see where chunks begin and end while building or exploring.
What it does
The mod is a Fabric client-side utility that renders chunk borders as vertical grid lines reaching 64 blocks above and below the player's position. Line colors, thickness, opacity and spacing can be changed, and a grid density setting cycles along chunk walls between lines every 16, 8, 4 or 2 blocks, with 1 block as a further option. Settings open from a keybind, which defaults to B, and are saved to a configuration file so they persist between sessions.
Chunk awareness is useful for planning builds, locating slime chunks and laying out redstone contraptions. Only the lines in view are drawn, and the rendering is described as efficient, so the overlay has little effect on frame rates. Players on Fabric can install it alone; no other mod is listed as a requirement, and it needs no server installation.
Key features
Chunk boundary grid
Vertical grid lines mark each chunk wall and extend 64 blocks above and below the player, keeping the inside of chunks clear.
Adjustable density and spacing
Grid density steps through spacings of 16, 8, 4, 2 and 1 block, and spacing can be set to any chosen interval.
Color and opacity control
Colors can be set with custom red, green and blue sliders, and opacity and line thickness can be reduced or increased.
Alternate Y colors
A toggle alternates border colors block by block along the Y axis, making it easier to count blocks and gauge depth.
Settings panel and toggle
A settings panel opens from the B keybind, and a menu option turns chunk borders off without changing the saved configuration.
Gallery
Compatibility
Latest build for each game version and loader.
26.x3 of 3 versions with builds
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who plan builds, work with redstone contraptions or hunt slime chunks in Fabric worlds. The overlay is client-side, so it is installed by the player alone.
How it compares
More Chunk Border Grids is client-side only, open source no, licensed All rights reserved, and built for 1.20.4 on Fabric. Ultraborder covers 1.21 – 26.2 on Fabric under a Creative Commons Attribution 4.0 license and is not open source, with no environment stated in its entry. Drop Keybinds is client-side only and open source under the Apache License 2.0, with files for 1.21 – 1.21.8, so it suits players on that range.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| BetterChunkBorders | Fabric | 1.21 – 26.1.2 | Client-side only | 2026-06-05 |
| More Chunk Border Grids | Fabric | 1.20.4 | Client-side only | 2024-01-16 |
| Ultraborder | Fabric | 1.21 – 26.2 | Not published | 2026-08-16 |
| Drop Keybinds | Fabric | 1.21 – 1.21.8 | Client-side only | 2024-10-14 |
Questions
Does BetterChunkBorders need to be on the server?
Which game versions does the latest Fabric file support?
Can the chunk border grid density be changed?
In the catalog
BetterChunkBorders is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 15,189 mods support Minecraft 26.1.2.
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What the author says
Better Chunk Borders is a lightweight, client sided utility mod that brings chunk boundaries with fully customizable grid lines. Whether you are planning intricate builds, hunting slime chunks, or making redstone stuff and contraptions, this mod gives you precise chunk awareness at a glance without looking ugly…
Official listing
- Modrinth page
- modrinth.com/mod/betterchunkborders
- Owner
- Cinnamonpuma
- Published
- 2025-10-15
- Updated on Modrinth
- 2026-06-05
- Facts verified
- 2026-10-15