IFramesTweaker

Tweaks How Invincibility Frames are handled to make fast weapons function properly.

21.4K Downloads

fabricneoforgeequipmentgame-mechanicsutility

Rent Server with this Mod

About this Mod

I Frames Tweaker is a simple mod that fixes fast weapons.

The Problem

I Frames (Invincibility Frames) are givin to entities that receive damage to stop them from being damaged too quickly. But In Vanilla this doesn't scale with weapon attack speed, making fast weapons added by weapon mods not very effective since they give way more I frames than they need to.

The Solution

I Frames Tweaker changes that by making inflicted I frames match the weapon's attack speed.
The I Frames Inflicted by a weapon should last about 75% of the weapon's recharge time, between 5 and 24 ticks.

There is a simple config that might change in the future.

Available Versions

IFramesTweaker 1.0.3release

MC 1.21.1neoforge

February 20, 2026

How to Install IFramesTweaker on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "IFramesTweaker". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricneoforge

Minecraft Versions

1.21.1, 1.20.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

IFramesTweaker server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is IFramesTweaker compatible with fabric and neoforge?

IFramesTweaker officially supports fabric, neoforge for Minecraft 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with IFramesTweaker – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if IFramesTweaker consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.