CSV Analyzer – Column Profiling & Data Quality Audit
Analyze CSV datasets locally in your browser. Generate column profiling stats (mean, median, min, max, sum), missing value ratios, duplicate row detection, and data quality reports.
📊 Interactive Column Profiler & Statistics
0 columns profiled| Column Name | Data Type | Unique | Missing % | Numeric Stats (Min / Max / Mean / Sum) | Top Frequent Values |
|---|---|---|---|---|---|
| Load or paste CSV data to generate column profiling statistics | |||||
🛡️ Data Quality & Anomaly Audit
📏 Dataset Structural Extrema
📋 Executive CSV Analysis & Profiling Report
Analysis report will be generated here upon CSV input...
CSV Analyzer Features
Complete spreadsheet statistics, column profiling, and quality auditing
📊 Column-by-Column Profiling
Calculates data types, unique values, missing ratios, min, max, mean, median, and sum per column.
🛡️ Data Quality & Health Grade
Assigns an overall health score & letter grade (A/B/C/D) based on duplicate rows and missing cell ratios.
⚠️ Anomaly & Outlier Spotter
Detects duplicate rows, empty columns, whitespace anomalies, and numeric statistical outliers.
⚡ Auto Delimiter Detection
Automatically recognizes commas, tabs, semicolons, and pipe delimiters instantly.
📊 Exportable Statistics CSV
Download a ready-to-use CSV file containing column profiling statistics and metric summaries.
🔒 100% Client-Side Privacy
Your CSV dataset stays in your browser memory. Zero files or data are uploaded to servers.
How to Use CSV Analyzer
Input CSV File
Paste CSV text into the input box, drag and drop a .csv file, or click Load Sample CSV.
Inspect Column Stats & Audit
Review column profiling metrics (unique, missing %, min/max/mean), structural extrema, and health warnings.
Copy or Export Report
Click Copy Report, Download Report, or Export Stats CSV to export analysis results.
Frequently Asked Questions
Is my CSV file uploaded to any server for analysis?
No, 100% private. Your CSV dataset is parsed, profiled, and audited entirely inside your web browser memory using client-side JavaScript. Zero data is sent to external servers.
Which column metrics are computed by the CSV Analyzer?
The tool computes data types, unique value counts, missing value percentages, numeric minimum, maximum, mean/average, median, sum, outlier detection, and top frequent values.
How does the tool detect delimiters and data quality issues?
The built-in RFC 4180 parser automatically detects delimiters (comma, tab, semicolon, pipe) and checks for duplicate rows, empty columns, whitespace anomalies, and mixed type conflicts.
Can I export the column profiling statistics?
Yes! You can copy the generated text report, download the executive summary file, or click Export Stats CSV to save column-by-column metrics as a CSV file.