
This mod introduces a sleek, lightweight HUD overlay designed specifically to help players monitor their local game performance and diagnose client-side lag or stuttering in real-time.
Instead of relying on the cluttered F3 debug screen, this mod provides a clean UI that tracks exactly what is impacting your PC's performance and causing your game to drop frames.
Key Features: Dynamic Stutter Detection (Status): Automatically monitors the client's processing time. If the local tick/frame time spikes above 50ms (which causes noticeable stuttering or freezing), the status instantly turns red and alerts you with "LAG DETECTED". Otherwise, it displays a green "STABLE" status.
Live Client Metrics: The HUD continuously tracks five crucial data points to help you pinpoint the source of your lag:
FPS: Your current Frames Per Second. Drops here indicate rendering struggles.
Tick Time: The exact duration of the client's processing cycle in milliseconds. High numbers mean your game is freezing or struggling to process data.
Entities: The total number of entities currently rendered around you. Useful for spotting lag caused by mob farms or dropped items.
Chunks/s: The rate at which your client is loading new map chunks. Fast flying or high render distances can cause this to spike and create lag.
RAM Usage: The current amount of memory (in MB) actively being consumed by the game. Perfect for identifying memory leaks or stuttering caused by Java Garbage Collection.
Quick Toggle & Customization: You can easily hide or show the entire UI at any time by pressing F7. If this conflicts with your other controls, the shortcut can be fully rebound to any key of your choice in the game's standard controls/keybinds menu.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.4, 1.21.5, 1.21.6
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as lag-profiler-mod-1.0.0.jar — drop this file into the mods folder
- Download size: 19 KB
- Download link checked 21 Aug 2026 — working
These come from our own check of the pack file, not from the source page.