ChronoX

A JavaFX countdown timer with a dark blue/purple theme. Create multiple timers that run independently, organize them by class, and pick up where you left off.

Features

• Multiple independent timers — run as many as you need simultaneously
• Classes (categories) — assign an optional class to each timer. Timers get a colored tag, and clicking the tag filters the list to that class
• Progress bars — each timer card shows a visual progress indicator
• Persistence — timers are saved to ~/.chronox/timers.txt and restored on startup, including running/paused state
• Sound alert — system beep when a timer finishes
• Finished timers float to top — completed timers move to the top of the list for visibility
• Edit timers — change name, description, or class on an existing timer
• Drag to reorder — drag the ☰ handle to rearrange timers
• Pause / Resume / Reset — full control over each timer
• Flexible time units — minutes, hours, days, weeks, or months

Requirements

• Java 17+
• Maven 3.6+

Run

mvn javafx:run

Usage

1. Click "+ New Timer" in the left panel
2. Enter a name, optional description and class, amount, and time unit
3. Click "Done" — the countdown starts immediately
4. Click a timer card to see the large countdown display
5. Use Pause, Reset, Edit, or Delete to control the selected timer
6. Click a class tag to filter the list — click ✕ to clear the filter
7. Drag the ☰ handle to reorder timers
8. When a timer finishes, press "Done" on the card to restart
9. Close the app — all timers are saved and restored on next launch

Project Structure

src/main/java/
├── module-info.java
└── no/countdown/
    ├── CountdownApp.java          # Application entry point
    ├── model/
    │   └── CountdownTimer.java    # Timer model with JavaFX properties
    └── ui/
        └── TimerController.java   # Main UI controller (BorderPane)
src/main/resources/
└── styles.css                     # Dark blue/purple theme

Data

Timer state is persisted to ~/.chronox/timers.txt. Running timers resume from their saved target time, paused timers keep their remaining duration, and finished timers stay marked as done.

Tech Stack

• Java 17
• JavaFX 21
• Maven with javafx-maven-plugin

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Built with the assistance of https://claude.ai by Anthropic.