Side by side
ImmediatelyFast vs Krypton
Both stand on minecraft performance mods. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source APILinuxMac+1
ImmediatelyFast focuses on client rendering across multiple game elements and mod loaders. Its value depends on whether the CPU is the bottleneck and whether the player uses a listed incompatible mod or client.
Visit ImmediatelyFast Free plan Open source LinuxMacSelf-hosted+1
Krypton focuses on Minecraft networking and server performance, with support for both clients and dedicated servers. Its compatibility and support are explicitly best effort, so check the fit with your setup.
Visit KryptonThe facts
| ImmediatelyFast | Krypton | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | Yes |
| Runs on | API, Linux, Mac, Windows | Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | github.com | github.com |
| On minecraft performance mods | #1 of 24 | #2 of 24 |
ImmediatelyFast: what it does well
- Free and open source under LGPL-3.0-or-later
- Supports Fabric, Forge, NeoForge, and Quilt
- Optimizes several rendering areas, including particles and maps
- Config file offers performance and compatibility options
What to know first
- Known incompatibilities include OptiFine and LunarClient
- Performance gains may be smaller on very fast CPUs
- No dedicated server support
Krypton: what it does well
- Works on both client and server.
- Dedicated server support is listed.
- Targets server CPU use and tick times.
- Supports Fabric and Quilt loaders.
- Free and licensed under LGPL-3.0-only.
What to know first
- Tuned for Linux.
- Compatibility with mods beyond Fabric API, Lithium and Sodium is best effort.
- Stability and compatibility are not guaranteed for every setup.
- Updates for new Minecraft versions depend on maker availability and need.
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