CSV Data Profiler (Privacy First)

Scan your CSV file for data types, null values, and structure errors.

Click to Upload CSV

Max file size: 500MB (Browser Limit)

Results will appear here after upload.

About This Tool

The CSV Profiler is a diagnostic tool designed to quickly audit your data files before you use them in databases, marketing tools, or analytics software. It helps identify data quality issues like inconsistent formatting, unexpected nulls, or mixed data types.

Key Benefits:

  • Avoid import errors by checking column types.
  • Identify missing data (Empty Cells count).
  • Understand categorical data via "Unique Count".
  • 100% Privacy: No data leaves your browser.

How to Use

  1. Click the Upload Area above.
  2. Select any .csv file from your computer.
  3. The tool will automatically parse the first 2,000 rows (for speed).
  4. Review the Stats Cards for high-level metrics.
  5. Check the Column Analysis table to see specific details about every header in your file.