A single-file Gantt chart application with week-level planning. No installation or dependencies required.
- Single HTML file — Download and open in any browser
- Week-level timeline — Calendar displays weeks with month/year headers
- Projects, tasks & milestones — Collapsible project sections
- Drag-and-drop — Move and resize task bars, reorder items
- Inline editing — Click any name to edit directly
- File operations — New, Open, Save, Save As
- Export options — CSV, PDF, PNG
- Custom colors — Per-task and per-milestone
- Sticky columns — Names stay visible while scrolling
- Auto-save — Changes persist to localStorage
- Download
gantt-chart.html - Open in any modern browser
- Start planning
Projects save as .gantt files (JSON) and can be shared across machines.
Works in Chrome, Edge, Firefox, and Safari. File System Access API features work best in Chromium-based browsers.
Free to use and adapt for internal business, personal, or educational use. Not permitted for resale or inclusion in paid products.
Licensed under Creative Commons Attribution–NonCommercial 4.0 (CC BY-NC 4.0).
Found a bug or have a suggestion? Send feedback to contact@alexengineered.com
AlexEngineered
Built for civil engineers who value their time.