Paojiao134's Catalyst
by Paojiao134
With Catalyst installed, players on Fabric, Forge or NeoForge get a client-side optimization pass for the 18 release versions it covers, with Architectury API as its required dependency.
What it does
Catalyst is a client-side mod for Minecraft Java Edition, built for players who want smoother play without changing the server. Only the client needs it, so servers and other players run without it. It requires Architectury API on every loader, and it is published for Fabric, Forge and NeoForge.
The mod is listed under Optimization, with Game mechanics and Utility as secondary categories. Its author text describes a focus on playing efficiency, a gamma setting raised to 10000 for brightness, and compatibility notes for Fabric API and Fabric API Forgified. The latest files are version 1.1 for 1.21.11, dated 2026-03-21, and the first release dates from 2026-01-24.
Builds cover 18 release versions, with files for each of them. Snapshot builds are not part of the listing. The code is not open source and is released under All rights reserved, so redistribution terms follow the author's license.
Key features
Efficiency focus
The author describes the mod as aimed at improving how efficiently players can play on their own client.
Gamma boost
A gamma value of 10000 is mentioned in the author text, brightening dark areas far beyond the vanilla slider.
Fabric API compatibility notes
The author text references Fabric API and Fabric API Forgified, so both appear in the mod's install notes.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
1.20.x6 of 6 versions with builds
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
Playing in caves and at night
Players who spend long stretches in dark underground areas can raise brightness without crafting light sources.
Client-only tuning on servers
Players can keep a personal setup on any server, since the server side is not touched.
Who it’s for: Players who want a client-side optimization and brightness adjustment on Fabric, Forge or NeoForge. Servers do not need it, and players joining a server do not need to ask the server owner for it.
How it compares
Easy Gamma is a Forge and NeoForge mod for 1.20.1 – 1.21.8, and players can install it on either side, since neither needs it. It is under All rights reserved and is not open source. Resource Gamma Util / Fullbright is client-side only, open source under the MIT License, and covers Fabric, Forge, NeoForge and Quilt for 1.21 – 26.3. Catalyst is also client-side only but is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Paojiao134's Catalyst | Fabric, Forge and NeoForge | 1.20.1 – 1.21.11 | Client-side only | 2026-03-21 |
| Easy Gamma | Forge and NeoForge | 1.20.1 – 1.21.8 | Client or server, optional | 2026-02-01 |
| Resource Gamma Util / Fullbright | Fabric, Forge, NeoForge and Quilt | 1.21 – 26.3 | Client-side only | 2026-10-10 |
Questions
Does Catalyst need Architectury API?
Does Catalyst have to be installed on the server?
Which loader should a player choose for Catalyst?
In the catalog
Paojiao134's Catalyst is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from Paojiao134
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What the author says
Catalyst 是一个轻量级的 Minecraft 客户端辅助模组，提供了一系列实用的游戏增强功能，让你的游戏体验更加流畅便捷。
Official listing
- Modrinth page
- modrinth.com/mod/paojiao134s-catalyst
- Owner
- Paojiao134
- Published
- 2026-01-24
- Updated on Modrinth
- 2026-03-21
- Facts verified
- 2026-10-15