Why I Built This
CSV files are everywhere — exports from databases, APIs, analytics tools, surveys, and reports.
But working with them is still painful:
Excel crashes on large files
Online tools require uploads (privacy risk)
Many tools feel heavy for quick exploration
I wanted a tool that:
Works instantly
Runs fully in the browser
Never uploads data
Feels simple but powerful
So I built CSV Explorer — a free, web-based CSV analysis tool.
👉 Live app:
https://innoadeq.github.io/csv-explorer/
What CSV Explorer Does
CSV Explorer lets you upload, explore, filter, and visualize CSV files directly in your browser.
No signup.
No backend.
No data uploads.
Everything runs locally.
Core Features
📂 Smart CSV Upload & Parsing
Drag-and-drop CSV upload
Automatic header detection
Smart data type inference (string, number, date, boolean)
Handles large CSV files efficiently
🧠 Intelligent Column Management
Automatically detects all columns
Search columns instantly
Select/deselect columns to focus your analysis
Collapsible column selector for mobile users
Avoids overwhelming users with too many fields
🔍 Advanced Data Filtering
Filters adapt based on column type:
Text: partial matching
Numbers: ranges, comparisons, exact values
Dates: from/to date selection
Booleans: dropdown filter
All filtering happens in real time.
📄 Smart Pagination
Configurable rows per page (10, 25, 50, 100)
First / Previous / Next / Last navigation
Clear record count and page info
Mobile-friendly controls
📊 Data Visualization
Bar charts: sum, average, count, min, max
Pie charts: distribution and proportions
Flexible column selection
Built using Chart.js
Perfect for quick insights without exporting again.
🔒 Privacy & Security (Core Principle)
100% client-side processing
Files never leave your browser
No tracking, no analytics, no storage
Works offline once loaded
This makes it safe for sensitive or internal data.
🎯 Who Is This For?
Data analysts exploring datasets
Business users analyzing reports
Researchers working with surveys
Students learning data analysis
Developers inspecting CSV exports
Anyone tired of Excel limitations 😄
🚀 Try It Out
🔗 CSV Explorer:
https://innoadeq.github.io/csv-explorer/
I’d love feedback, feature requests, or suggestions from the community.
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