JavAlert

Send native OS alerts and notifications to players! Perfect for trolling friends, server announcements, quest systems, and automated interactions. Alerts appear outside the game as real system notifications on Windows, macOS, and Linux.

Full documentation: Wiki

Features

• Native System Notifications - Real OS notifications outside the game
• Message Boxes - Native dialog boxes (Windows, macOS, Linux)
• Custom In-Game Screens - Beautiful custom alert screens with buttons
• Alert Beacon Block - Automatically trigger alerts when players enter detection radius
• Conditional Triggers - Trigger based on inventory, stats, location, biome, and more
• Templates - Save and reuse alert configurations
• Multi-Language Support - English, Spanish, French, German
• API Integration - Comprehensive API for mod developers

Quick Start

1. Place an Alert Beacon block in your world
2. Right-click to configure radius, message, and display type
3. Set trigger mode (ENTER, EXIT, STAY, PROXIMITY, PORTAL)
4. Add conditions and filters (optional)
5. Save and players will receive alerts automatically!

Commands

• /alert <target> simple <message> - Simple alert
• /alert <target> messagebox <title> <message> - Messagebox alert
• /alert <target> notification <message> - Notification alert
• /alert <target> customscreen <title> <primaryButton> [secondaryButton] <message> - Custom screen
• /alert manage - Management GUI (OP Level 5)
• /alert documentation - In-game documentation

API for Mod Developers

See API Documentation.

Installation

1. Download JavAlert-1.2.jar from Modrinth
2. Place in your mods folder
3. Restart Minecraft

Configuration

Access configuration via the "JavAlert Config" button on the main menu (icon next to Singleplayer button).

Documentation

Complete documentation: Wiki

• Getting Started
• Alert Beacon Guide
• Conditions and Filters
• Templates
• Commands
• API Documentation
• Troubleshooting

You can also use /alert documentation in-game for interactive documentation.

Technical Details

• Minecraft: 1.20.1
• Forge: 47.4.13+
• Java: 17+
• License: All Rights Reserved

Developer note :

This is my first Minecraft mod, so i am just testing things with this mod and other mods are coming soon !