# Timelineifyer

A lightweight, browser-based timeline creation and visualization tool. No install, no build step — just open `index.html`.

## Features

- Create and manage multiple timelines
- Add events with dates, titles, descriptions, URLs, categories, and thumbnail images
- Color-coded categories for organizing events
- Zoom controls and compact/full date format toggle
- Export timelines as SVG or PNG (suitable for PowerPoint)
- Import/export timelines as JSON for backup and sharing
- Fullscreen presentation mode with keyboard navigation
- Light/dark theme
- All data persisted in browser localStorage

## Usage

Open `index.html` in any modern browser. No server or dependencies required.

### Keyboard Shortcuts (Presentation Mode)

| Key | Action |
|-----|--------|
| `P` | Toggle presentation mode |
| `←` / `→` | Navigate between events |

## Data Storage

Timelines are saved to `localStorage` under the key `timelineifyer`. Use the JSON export feature to back up or share your timelines.

## Tech Stack

Pure HTML5, CSS3, and vanilla JavaScript — no frameworks or external dependencies.