DataLens Pro — Excel Analyzer

About

Analyze, visualize and export your Excel and CSV data — right inside Chrome, with zero server uploads. Every byte of your data stays on your device.

DataLens Pro opens as a full browser tab, giving you a professional data analytics workspace that works on any file, any time, with no account required.

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📊 INSTANT COLUMN STATISTICS
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• Min, max, mean, median, standard deviation, sum, quartiles
• Unique value counts, most common values (top 10), null detection
• Data quality score across all columns
• Auto-generated insights: outliers, skew, distribution patterns

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📈 INTERACTIVE CHARTS (Free: 3 types · Pro: all 7)
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• Bar, Line, Pie — free for all users
• Area, Donut, Scatter, Horizontal Bar — Pro
• 6 color palettes: Vivid, Ocean, Neon, Warm, Emerald, Spectrum
• Toggle data labels, grid lines, and chart legend independently
• Interactive tooltips on hover

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🔄 PIVOT TABLE BUILDER (Pro)
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• Drag-and-drop Row / Column / Value fields
• 5 aggregation modes: Sum, Average, Count, Min, Max
• Optional heatmap overlay and grand totals
• Export pivot as CSV or PDF

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📤 EXPORT FROM EVERY PANEL
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Free users:
• CSV download from the Data tab

Pro users (all of the above plus):
• JSON export
• Chart PNG screenshot
• Chart PDF via print dialog
• Pivot table CSV + PDF
• Data table PDF (up to 500 rows)
• Summary PDF with KPI cards
• Full Analysis Report PDF (stats + insights + sample data)

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🔒 YOUR DATA NEVER LEAVES YOUR DEVICE
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All file parsing, statistics computation, chart rendering, and export happen entirely inside your Chrome browser tab. No file contents are transmitted, uploaded, logged, or shared — ever. DataLens Pro works fully offline after installation.

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💎 FREE & PRO PLANS
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FREE (no account, no payment):
✓ 20 file uploads per calendar month (auto-resets on the 1st)
✓ First 5,000 rows of each file
✓ All statistics and insights
✓ 3 chart types (Bar, Line, Pie)
✓ Sortable, searchable data table
✓ CSV export

PRO — One-time payment, lifetime access:
✓ Unlimited file uploads
✓ Full data — all rows, no cap
✓ All 7 chart types
✓ Full Pivot Table builder
✓ All export formats (JSON, PNG, PDF, Full Report)
✓ Priority support
✓ All future updates included

Payment: ৳550 (bKash) or $4.99 (Payoneer/International)
No subscription. No account. Activate instantly with a license key.

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📁 SUPPORTED FILE FORMATS
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• Microsoft Excel: .xlsx, .xls
• Comma-Separated Values: .csv
• File size: up to 10MB

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🌙 DAY & NIGHT THEMES
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Switch between a dark navy theme (default) and a clean light theme. Your preference is saved automatically.