AetherTune
by OptiHoja
AetherTune is a Fabric utility that reads the RAM, CPU and GPU of the machine it runs on and sets Sodium's optimization options to a matching profile.
What it does
Sodium is required, and the mod works by changing its settings rather than replacing them. An AUTO setting detects the available memory, processor and graphics hardware and chooses one of six profiles, ranging from a 4 GB profile that keeps chunk loading modest and caps particles, up to a 32 GB profile that loads 32 chunks and targets 260 FPS. Each profile sets render and simulation distance, the FPS cap, particles, clouds, graphics mode, biome blend and smooth lighting together, so players do not have to change each option by hand.
Fabric API is optional. The environment is client-side only: the mod changes what a player's own client renders and loads, and it works on a vanilla or Paper server without being installed there. Released under the MIT License, the code is not open source. Files exist for 1.21 – 1.21.11, with 1.0.1-1.21x as the latest build for 1.21.11, published 2026-09-02 after the first release on 2026-09-01.
Key features
Automatic profile selection
The AUTO option reads the detected RAM, CPU and GPU and applies the profile that fits the hardware.
Six fixed profiles
Profiles run from the 4 GB tier to the 32 GB tier, each setting chunk loading and frame rate limits together.
Sodium option tuning
Render distance, VSync, entity distance, shadows, particles, clouds and quality settings are changed as one set.
Advanced Sodium flags
Options such as culling behavior, render-ahead, defer threads and the GL error check can be changed from the same screen.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 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
Optional 1
Use cases
Who it’s for: Players who run Sodium on Fabric and want its settings chosen for their hardware, rather than adjusted by hand. Players who prefer to set every option themselves can keep the profiles from applying and tune Sodium directly.
How it compares
Perf Boost is a Fabric mod for 1.21.10 that is also client-side only and open source under the MIT License, so it covers a different version. showefps is a Fabric client-side mod for 1.21.11 under the MIT License, but it is not open source and reports frame rate rather than changing settings. Adaptive Graphics is a Fabric client-side mod for 1.21.11 with a different license, All rights reserved, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| AetherTune | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-09-02 |
| Perf Boost | Fabric | 1.21.10 | Client-side only | 2026-02-16 |
| showefps | Fabric | 1.21.11 | Client-side only | 2026-02-21 |
| Adaptive Graphics | Fabric | 1.21.11 | Client-side only | 2026-02-23 |
Questions
Does AetherTune need Sodium?
Does AetherTune have to be installed on a server?
Which game versions are covered?
In the catalog
AetherTune is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
Client-only — Works on any vanilla/Paper server. All tuning happens on the client. AetherTune automatically tunes every Sodium and vanilla optimization to your RAM. No more guessing what to disable.
Official listing
- Modrinth page
- modrinth.com/mod/aethertune
- Owner
- OptiHoja
- Published
- 2026-09-01
- Updated on Modrinth
- 2026-09-02
- Facts verified
- 2026-10-15