
Lag Notifier

Versions 1.21.9 and above require mod menu to function for configuration.
I will test every version moving forward to ensure stable releases. Please note that future updates will not be as frequent or fast. Thank you for your patience! Also, please avoid using release 1.0.4 as it causes crashes; it remains available only for archival purposes.
Lag Notifier keeps you aware of performance issues in Minecraft by displaying real-time tick information directly on your HUD. No more guessing when the game stutters — instantly see how long it has been since the last tick and react accordingly.
Features
- Real-time lag detection – Shows the time since the last server tick so you can spot lag as it happens.
- Customizable HUD – Fully configurable position, scale, colors, and background to match your setup.
- Color-coded severity – Instantly recognize minor, moderate, and severe lag with clear visual cues.
- Enhanced readability – Shadowed text and background options ensure visibility in any environment.
- Client-side only – Lightweight, safe, and requires no server-side installation.
Getting Started
- Install the mod using the Fabric Loader.
- Launch Minecraft and configure the HUD in the in-game settings menu.
- By default, lag notifications appear in the top-left corner of your screen.
Why Use Lag Notifier?
Lag can disrupt building, combat, and redstone contraptions. With Lag Notifier, you’ll always know when the game is struggling, helping you adapt and make smarter gameplay decisions.
Stop guessing. Start seeing. Never be caught off-guard by lag again!
Ченджлог
1.0.5Релиз26.1 · 22 мая 2026 г.
Lag Notifier v1.05 - Fixes for 26.1 Release
I'm terribly sorry, but I omitted testing in the last release, which caused it to crash. It's been fixed and I've added more features since then!
Fixes
- Mod now loads and works on Minecraft 26.1 (previously crashed immediately due to missing client files in the JAR)
- Updated all Minecraft class names to match 26.1's restructured API (networking, rendering, utilities)
- Config screen now properly renders all auto-config options instead of showing blank sections
Added
- Display Settings section with:
- Configurable delay and escalation thresholds to set how long lag must persist before displaying, and when it transitions to medium or high severity colors (0.1s increments)
- Custom prefix text toggle and field
- Adjustable decimal places (0-4)
- Always Show mode to keep the HUD visible even without lag
- Background padding option
Enjoy a smoother Minecraft experience with Lag Notifier!
1.0.4Релиз26.1 · 1 апреля 2026 г.
Lag Notifier v1.0.4 - The 26.1 Update
⚠️ This version does not work and will crash the game. Please use the latest 26.1 version. You have been warned.
Welcome to the fifth release of Lag Notifier! Support has been added for 26.1.
Updates
- Version upgrade: The version has been upgraded to 26.1.
Enjoy a smoother Minecraft experience with Lag Notifier!
1.0.3Релиз1.21.11 · 4 января 2026 г.
Lag Notifier v1.0.3 - The 1.21.11 Update
Welcome to the fourth release of Lag Notifier! Support has been added for 1.21.11.
Updates
- Mod Menu is now required: Mod Menu is now required to be installed in order for configuration.
Enjoy a smoother Minecraft experience with Lag Notifier!
1.0.2Релиз1.21.10 · 25 октября 2025 г.
Lag Notifier v1.0.2 - The 1.21.10 Update
Welcome to the third release of Lag Notifier! Support has been added for 1.21.10.
Updates
- Optimized codebase: The codebase has been optimized for faster detection.
Enjoy a smoother Minecraft experience with Lag Notifier!
1.0.1Релиз1.21.9 · 4 октября 2025 г.
Lag Notifier v1.0.1 - The 1.21.9 Update
Welcome to the second release of Lag Notifier! Support has been added for 1.21.9.
Updates
- Removed F9 Keybind: The keybind has been removed for causing issues when trying to build the project.
Enjoy a smoother Minecraft experience with Lag Notifier!
1.0.0Релиз1.21.8 · 1 октября 2025 г.
Lag Notifier v1.0.0 - First Release
Welcome to the first official release of Lag Notifier! This mod helps you monitor Minecraft performance in real-time and never be caught off-guard by lag again.
Features
- Real-time lag detection: Displays server lag in ticks directly on your HUD.
- Color-coded severity: Minor, moderate, and severe lag are highlighted with different colors.
- Customizable HUD: Adjust text color, shadow, scale, and position to your liking.
- Background support: Toggle a background behind the HUD for better visibility.
- Easy configuration: Access the config screen via Mod Menu (default key:
F9). - Lightweight and client-side: No server changes required.
Notes
- This is the initial release; all core features are fully functional.
- Feedback and bug reports are welcome to help improve future versions.
Enjoy a smoother Minecraft experience with Lag Notifier!
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