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Upload a file, preview the data, and build interactive charts — all without any data leaving your device.\n\n## Features\n\n- **File upload** — drag-and-drop or click to browse; supports `.xlsx`, `.xls`, and `.csv`\n- **Data table** — paginated preview of all rows and columns\n- **Summary stats** — instant cards showing row count, column count, column sum and average\n- **Dashboard** — build and arrange multiple charts side by side\n- **5 chart types** — Bar, Line, Area, Pie, Scatter\n- **Multi-series support** — plot multiple columns on the same bar, line, or area chart\n- **100% local** — files are parsed entirely in the browser; nothing is sent to a server\n\n## Tech Stack\n\n| Tool | Purpose |\n|------|---------|\n| [Vite](https://vite.dev) | Build tool \u0026 dev server |\n| [React 19](https://react.dev) | UI framework |\n| [TypeScript](https://www.typescriptlang.org) | Type safety |\n| [Tailwind CSS v4](https://tailwindcss.com) | Styling |\n| [Recharts](https://recharts.org) | Chart rendering |\n| [SheetJS (xlsx)](https://sheetjs.com) | Excel file parsing |\n| [PapaParse](https://www.papaparse.com) | CSV file parsing |\n| [Lucide React](https://lucide.dev) | Icons |\n\n## Getting Started\n\n**Prerequisites:** Node.js 18+\n\n```bash\n# Install dependencies\nnpm install\n\n# Start the development server\nnpm run dev\n\n# Build for production\nnpm run build\n```\n\nThe app runs at `http://localhost:5173` by default.\n\n## Project Structure\n\n```\nsrc/\n├── App.tsx                    # Main app shell (upload → table → dashboard flow)\n├── types.ts                   # Shared TypeScript types\n├── index.css                  # Global styles (Tailwind import)\n├── utils/\n│   └── parseFile.ts           # Excel and CSV parsing logic\n└── components/\n    ├── FileUpload.tsx          # Drag-and-drop file upload\n    ├── DataTable.tsx           # Paginated data preview table\n    ├── SummaryStats.tsx        # Summary stat cards\n    ├── ChartBuilder.tsx        # Sidebar form to configure new charts\n    └── ChartCard.tsx           # Renders individual charts via Recharts\n```\n\n## Usage\n\n1. Open the app and upload an Excel or CSV file.\n2. Review your data in the **Data Table** tab.\n3. Switch to the **Dashboard** tab.\n4. Use the sidebar to pick a chart type, select X and Y columns, and click **Add to Dashboard**.\n5. Repeat to add more charts. Remove any chart with the × button.\n6. Click **New file** in the header to start over with a different file.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpelineceburgun%2Fcustom-data-visualization","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpelineceburgun%2Fcustom-data-visualization","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpelineceburgun%2Fcustom-data-visualization/lists"}