FullBright Slider
by C0nner278
With FullBright Slider installed, a player can raise the lighting of dark caves and unlit rooms to full brightness using two keys.
What it does
The mod adds a brightness slider with 11 levels, from 0% to 100% in 10% steps. The lowest setting leaves lighting untouched, while the top setting makes pitch-black caves and unlit rooms visible.
Up Arrow raises the level and Down Arrow lowers it, and chat shows the current percentage after each change. Both keys can be rebound under Options, Controls, FullBright Slider. The mod is a single lightweight client-side tool with no extra menus or configuration screens. It works in singleplayer and on multiplayer servers, and only the client needs it. Fabric API is required, and builds cover 1.21.10 – 26.3 under the MIT License, which is not open source.
Key features
Eleven brightness levels
The slider moves in 10% steps from 0% to 100%, so a player can pick the exact amount of light needed.
Real fullbright
At the top level the lighting calculation is changed directly, so unlit rooms and caves show their contents rather than only looking brighter.
Keys with chat feedback
Up Arrow and Down Arrow adjust the level, and chat displays the current brightness percentage after each change.
Rebindable controls
Both keys can be changed in the controls options, so the slider does not conflict with other bindings.
No configuration screens
The mod has no config menu, only two keys, which keeps the options area free of clutter.
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
Use cases
Who it’s for: Players who want to see into dark areas of the world and do not need extra menus or configuration. The mod is for single-player players and for multiplayer clients, since only the client needs it.
How it compares
Vision is a Fabric mod that is client-side only, covers 1.21.11 – 26.3, and is released under All rights reserved, so it is not open source. Sodium Fullbright is also Fabric and client-side only, for 1.21.1 – 26.3, under the Apache License 2.0, which is not open source. Simple Fullbright is the only alternative that is open source. It is released under the MIT License and works on Fabric, Forge and NeoForge for 1.16.5 – 26.3, and it is client-side only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| FullBright Slider | Fabric | 1.21.10 – 26.3 | Client-side only | 2026-09-17 |
| Vision | Fabric | 1.21.11 – 26.3 | Client-side only | 2026-09-17 |
| Sodium Fullbright | Fabric | 1.21.1 – 26.3 | Client-side only | 2026-03-26 |
| Simple Fullbright | Fabric, Forge and NeoForge | 1.16.5 – 26.3 | Client-side only | 2026-09-20 |
Questions
Does FullBright Slider need Fabric API?
Does the server need FullBright Slider?
Which versions are supported?
In the catalog
FullBright Slider is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 8,071 mods support Minecraft 26.3.
More from C0nner278
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What the author says
A simple, lightweight fullbright slider for Fabric. No config screen, no clutter — just two keys and a brightness percentage. Press ⬆️ Up to brighten and ⬇️ Down to darken, with 11 brightness levels from 0% to 100%.
Official listing
- Modrinth page
- modrinth.com/mod/fullbright-slider
- Owner
- C0nner278
- Published
- 2026-07-30
- Updated on Modrinth
- 2026-09-17
- Facts verified
- 2026-10-15