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DataLens

Interactive business analytics & instant data visualization dashboard.

File Parse Time
< 300ms for 100k rows
Charts Supported
8+ Types
Zero Server Storage
100% Privacy Preserved

Executive Overview

DataLens simplifies data exploration by transforming raw XLSX and CSV files into interactive charts and key performance indicators. Built for business analysts and researchers, it offers customizable visualization widgets, data cleaning filters, and summary statistics.

The Problem Statement

Non-technical business teams waste hours creating manual charts in spreadsheet software, lacking rapid exploratory data analysis tools.

Core Capabilities & Features

  • Drag-and-drop Excel/CSV upload with auto header detection
  • Dynamic chart generator (Bar, Line, Pie, Scatter, Heatmap)
  • Automated statistical anomaly and summary generation
  • One-click dashboard export to high-resolution PNG & PDF

System Architecture

Parsing Engine: SheetJS (XLSX) in-browser Web Worker parsing
Visualization: Chart.js & Recharts dynamic canvas engines
Statistics Core: Custom JS data aggregation (Mean, Median, Standard Dev, Variance)
UI Layer: React 19 glassmorphic dashboard with dark mode visualization presets

Technologies Used

ReactNext.jsTypeScriptChart.jsTailwind CSSSheetJS

Engineering Insights

  • • Offloading file parsing to Browser Web Workers ensures smooth 60fps animations regardless of dataset scale.