CSV Profiler
Analyse CSV data to understand structure, detect data quality issues, and get insights about your dataset. Runs entirely in your browser for privacy.
This runs locally in a browser worker. Bigger inputs take longer, so start with a smaller sample.
Tip: start with a representative sample. Quoted fields are supported. If profiling is slow, reduce the sample and try again.
Export
Download results as PDF, CSV, or JSON.
Run the tool to enable exports.
What is CSV Profiling?
CSV profiling is the process of examining your data to understand its structure, quality, and characteristics. It helps you identify issues like missing values, data type inconsistencies, outliers, and patterns before you start working with your data.
Statistical Summary
Get counts, unique values, min/max ranges, and distribution statistics for each column.
Data Quality Insights
Detect missing values, duplicates, and potential data entry errors automatically.
Actionable Recommendations
Receive suggestions for data cleaning and transformation based on detected issues.
Privacy & Security
This tool runs entirely in your browser using a Web Worker. Your CSV data never leaves your device and is not sent to any server. This makes it safe to use with sensitive or confidential data.