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Own your data.**\n\n[![CI](https://github.com/kitikonti/ownchart/actions/workflows/ci.yml/badge.svg)](https://github.com/kitikonti/ownchart/actions/workflows/ci.yml)\n[![Version](https://img.shields.io/github/v/tag/kitikonti/ownchart?label=version)](https://github.com/kitikonti/ownchart/releases)\n[![License](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)\n[![TypeScript](https://img.shields.io/badge/TypeScript-5.3-blue.svg)](https://www.typescriptlang.org/)\n[![React](https://img.shields.io/badge/React-18.3-61dafb.svg)](https://react.dev)\n[![Sponsor](https://img.shields.io/badge/Sponsor-%E2%9D%A4-ff69b4.svg)](https://github.com/sponsors/kitikonti)\n\n**OwnChart** is a browser-based Gantt chart application that respects your privacy. No cloud, no tracking, no accounts. Your data stays on your device.\n\n![OwnChart Screenshot](.github/screenshot.png)\n\n## Get Started\n\n**Use OwnChart now**: [ownchart.app](https://ownchart.app)\n\nNo installation needed — open the app and start planning. Your data stays in your browser's local storage, or save it as a `.ownchart` file to keep full control.\n\n## Features\n\n### Privacy \u0026 Data Ownership\n- **100% Local** — All data stays on your device, nothing is sent to any server\n- **Zero Tracking** — No analytics, no telemetry, no cookies\n- **No Accounts** — No sign-up, no login, no email required\n- **File-Based** — Save/load `.ownchart` files you own and control\n- **Open Source** — Fully auditable MIT-licensed code\n\n### Timeline \u0026 Editing\n- **Drag-to-Move \u0026 Resize** — Interactive task bars on the timeline\n- **Task Dependencies** — Finish-to-Start links with automatic date propagation\n- **Multi-Task Drag** — Move all selected tasks together\n- **Summary Task Drag** — Moving a summary moves all its children\n- **Infinite Scroll** — Timeline auto-extends as you scroll past/future\n- **Zoom** — 5% to 300% with cursor-centered anchoring\n\n### Project Organization\n- **Task Hierarchy** — Summaries, milestones, and regular tasks (3 levels deep)\n- **Multi-Select** — Ctrl/Shift+Click or rectangular marquee selection\n- **Copy/Paste** — Cross-tab clipboard with dependencies preserved\n- **Insert Tasks** — Add above/below with toolbar buttons or placeholder row\n- **Undo/Redo** — 100-step command history for all operations\n\n### Export\n- **PNG Export** — High-resolution raster images\n- **PDF Export** — Vector graphics that scale perfectly for large prints\n- **SVG Export** — Editable vector output\n- **Live Preview** — Figma-style export dialog with real-time preview\n- **Page Options** — A4, A3, Letter, Legal, Tabloid with orientation and margins\n\n### Customization\n- **5 Color Modes** — Manual, Theme, Summary Group, Task Type, Hierarchy\n- **UI Density** — Compact, Normal, or Comfortable row heights\n- **Holiday Support** — 199 countries with timeline highlighting\n- **Working Days Mode** — Business day calculations for scheduling\n- **Task Labels** — Position before, inside, after, or hide labels\n- **View Toggles** — Show/hide today marker, weekends, holidays, dependencies, progress\n\n### User Experience\n- **Ribbon UI** — MS Office-style tabbed interface (File, Task, View, Help)\n- **Keyboard Shortcuts** — Efficient navigation and editing\n- **Help Panel** — Built-in shortcut reference (press `?`)\n- **Welcome Tour** — Guided introduction for first-time users\n- **Security** — 6-layer file validation against XSS/injection\n\n## Keyboard Shortcuts\n\n| Shortcut | Action |\n|----------|--------|\n| `Ctrl+Z` | Undo |\n| `Ctrl+Shift+Z` / `Ctrl+Y` | Redo |\n| `Ctrl+C` / `Ctrl+V` / `Ctrl+X` | Copy / Paste / Cut |\n| `Ctrl+A` | Select all tasks |\n| `Del` | Delete selected tasks |\n| `Tab` / `Shift+Tab` | Indent / Outdent |\n| `F` | Fit timeline to view |\n| `T` | Toggle today marker |\n| `D` | Toggle dependencies |\n| `P` | Toggle progress |\n| `H` | Toggle holidays |\n| `?` | Open help panel |\n\n## Browser Support\n\n| Browser | Minimum Version |\n|---------|----------------|\n| Chrome / Edge | 90+ |\n| Firefox | 88+ |\n| Safari | 14+ |\n\nWorks on Windows, macOS, and Linux.\n\n## Quick Start (Development)\n\n```bash\n# Clone the repository\ngit clone https://github.com/kitikonti/ownchart.git\ncd ownchart\n\n# Install dependencies\nnpm install\n\n# Start development server\nnpm run dev\n```\n\nOpen [http://localhost:5173](http://localhost:5173) to start developing.\n\n## Tech Stack\n\n- **React 18** — UI framework with hooks\n- **TypeScript** — Type-safe development\n- **Zustand** — Lightweight state management\n- **TailwindCSS** — Utility-first styling\n- **Vite** — Lightning-fast build tool\n- **D3.js** — Timeline rendering\n- **Vitest + Playwright** — Comprehensive testing\n\n## Scripts\n\n```bash\nnpm run dev              # Start dev server\nnpm run build            # Production build\nnpm run preview          # Preview production build\n\nnpm run lint             # Lint code\nnpm run format           # Format with Prettier\nnpm run type-check       # TypeScript validation\n\nnpm run test:unit        # Unit tests with coverage\nnpm run test:e2e         # E2E tests with Playwright\n\nnpm run ci:local         # Run all checks (pre-commit)\n\nnpm run release          # Create new release with changelog\n```\n\n## Project Structure\n\n```\nownchart/\n├── src/\n│   ├── components/      # React components\n│   ├── store/          # Zustand state slices\n│   ├── utils/          # Helper functions\n│   ├── types/          # TypeScript definitions\n│   └── hooks/          # Custom React hooks\n├── tests/              # Unit, integration, E2E tests\n├── docs/               # Comprehensive documentation\n└── CLAUDE.md           # AI assistant guide\n```\n\n## Documentation\n\nComprehensive documentation is available in the [`/docs`](./docs) folder:\n\n- **[Product Requirements](./docs/planning/PRD.md)** — Vision and requirements\n- **[Roadmap](./docs/planning/ROADMAP.md)** — Development phases\n- **[Technical Architecture](./docs/architecture/TECHNICAL_ARCHITECTURE.md)** — System design\n- **[Data Model](./docs/architecture/DATA_MODEL.md)** — Data structures\n- **[Testing Strategy](./docs/process/TESTING_STRATEGY.md)** — QA approach\n- **[CI/CD Pipeline](./docs/process/CI_CD.md)** — Deployment process\n\n## Security \u0026 Privacy\n\nOwnChart is designed with privacy as the foundation:\n\n- **Zero Telemetry** — No analytics, no tracking\n- **Local-Only** — No data ever leaves your device\n- **No Accounts** — No sign-up, no login required\n- **File Validation** — 6-layer security pipeline (XSS, prototype pollution prevention)\n- **Open Source** — Fully auditable code\n\n## Current Status\n\n**v1.0 milestone reached** — OwnChart is stable and feature-complete for professional Gantt chart creation and editing. See the [changelog](./CHANGELOG.md) for details.\n\n**Next Up (V1.1)**:\n- Advanced dependencies (Start-to-Start, Finish-to-Finish, Start-to-Finish)\n- Custom fields UI\n- Multi-project management\n- Named snapshots\n\nSee the [Roadmap](./docs/planning/ROADMAP.md) for the full development plan.\n\n## Contributing\n\nContributions are welcome! Please read our [contributing guidelines](./CONTRIBUTING.md) before submitting PRs.\n\n**Development Workflow**:\n1. Fork the repository\n2. Create your feature branch (`git checkout -b feature/amazing-feature`)\n3. Commit your changes (`git commit -m 'feat: add amazing feature'`)\n4. Push to the branch (`git push origin feature/amazing-feature`)\n5. Open a Pull Request\n\n**Commit Convention**: We use [Conventional Commits](https://www.conventionalcommits.org/) for automated changelog generation.\n\n## License\n\n[MIT License](LICENSE) — Feel free to use OwnChart for any purpose.\n\n## Links\n\n- **App**: [ownchart.app](https://ownchart.app)\n- **Repository**: [github.com/kitikonti/ownchart](https://github.com/kitikonti/ownchart)\n- **Issues**: [Report a bug or request a feature](https://github.com/kitikonti/ownchart/issues)\n- **Changelog**: [See what's new](./CHANGELOG.md)\n\n---\n\n**Built with care for privacy-conscious project managers.**\n\n**OwnChart** — Because your project data belongs to you, not in someone else's cloud.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkitikonti%2Fownchart","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkitikonti%2Fownchart","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkitikonti%2Fownchart/lists"}