Profile CSV Data, free in your browser

Create a per-column CSV summary with row, non-empty, empty, and unique counts. Fully numeric columns also include minimum and maximum values.

How to profile CSV data

1. Choose a CSV or TSV file.
2. Choose whether the first row contains column names.
3. Create and download the profile report as a CSV file.

Limits & good to know

• CSV and TSV files up to 50 MB, 500,000 rows, and 2,000 columns are processed on your device.
• Numeric ranges appear only when every non-empty value in a column is numeric.
• The profile is descriptive and does not infer whether values meet your business rules.

Frequently asked questions

Are my files uploaded to a server?

Your files are processed on your device, not uploaded to our servers. Your file and edits are saved in this browser for recovery, and previous documents remain in Saved drafts when you open another file. Use Saved drafts to resume or delete individual copies, or clear this site’s browser data to remove all copies. Browser storage can be cleared or become unavailable; download important work.

Does the profile detect invalid dates or business-specific errors?

No. It reports structural counts and numeric ranges without assuming your schema or business rules.

Is this really free, or free "until you hit a limit"?

Really free. Unlike most "free" PDF sites there is no task-per-day cap, no locked Pro features, no watermark stamped on your file, and no payment step before download. Every tool is the full tool.