Create professional project timelines with our free online interactive Gantt chart builder. Visualize tasks, schedules, and dependencies in a clean, web-based tool.
AI Generation Prompt
Application Overview
The Interactive Gantt Chart Builder is a browser-based utility designed for project managers, students, and freelancers to visualize project timelines without the overhead of complex, login-gated software. It provides a clean, professional interface for creating task-based schedules using a traditional Gantt methodology.
Core Features
- Dynamic Task Addition: Add, edit, or remove tasks with specific start dates and durations.
- Interactive Timeline Visualization: A dual-pane layout featuring a task list on the left and a scrollable, zoomable Gantt chart on the right.
- Zoom Control: Toggle between daily, weekly, and monthly views to adjust the level of detail.
- Visual Resizing: Use intuitive drag-handles on the Gantt bars to adjust task durations dynamically.
- Export/Print: Built-in CSS print media queries and browser-native print functionality for easy PDF generation.
- Lightweight & Fast: Built with zero dependencies, ensuring near-instant load times.
UI Layout
- Header: Contains the app title, a "Reset Project" button, a "Print/Export" button, and a visual legend indicator.
- Toolbar: Includes "Add Task" button, Zoom +/- controls, and a "View Settings" dropdown.
- Main Tool Area:
- Left Sidebar: A structured table displaying Task Name, Start Date, and Duration (in days).
- Right Content Area: A synchronized canvas displaying the visual timeline bars corresponding to the left table.
- Custom Modals: All interactions requiring input (e.g., adding a new task) open as centered, high-contrast modal overlays to prevent browser-native dialog usage.
Color Palette (Light Mode Aesthetic)
- Primary: Indigo-600 (#4f46e5) for actionable buttons and active task bars.
- Background: Slate-50 (#f8fafc) for the main application background.
- Surface: White (#ffffff) for the task list and toolbars, utilizing soft shadows (shadow-sm) for depth.
- Borders: Slate-200 (#e2e8f0) for clean lines between table cells and chart grids.
- Text: Slate-900 (#0f172a) for primary text; Slate-500 (#64748b) for secondary information.
Technical Architecture & Constraints
- Single File: All HTML, CSS, and Vanilla JavaScript must be contained within a single index.html file.
- No Persistence: Strictly forbidden to use
localStorage,sessionStorage, or cookies. The application must treat the page reload as a total state reset. An prominent "Data is volatile" warning should be displayed in the header. - Responsive Design: The layout must switch to a stacked view on small screens, or provide horizontal scrolling for the Gantt chart while keeping the task list fixed.
- Safe Execution: The app must be compatible with sandboxed iframes (no
popups,top-navigation, orcookiesallowed). - Modern Aesthetic: Use standard system fonts (Inter, system-ui) and CSS Flexbox/Grid for layout. Avoid heavy library usage; use Tailwind CSS via CDN for rapid, consistent styling.
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Frequently Asked Questions
Everything you need to know about using this application.
Does this Gantt chart tool save my data?
This application operates entirely in your browser's memory for privacy and speed. It does not store data on a server or in your browser's storage. Please export your chart as an image or PDF before closing the page to ensure you do not lose your progress.
Can I use this for complex project management?
Yes, this tool is ideal for creating visual timelines, mapping out project phases, and coordinating team schedules for small to medium-sized projects. It provides a clear, high-level view of tasks and their durations.
Is this tool free to use?
Yes, this is a completely free, utility-based web application. There are no paywalls, registration requirements, or premium feature tiers.
How do I export my project timeline?
You can use the built-in 'Print' or 'Export' functionality to save your Gantt chart as a PDF or high-resolution image file for inclusion in reports or presentations.
