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Find Common Rows

Free tool to find rows that appear in both CSV files (the intersection), in your browser.

Learn more: CSV Files ExplainedThe CSV format, RFC 4180 quoting rules, encodings, common pitfalls, and how CSV compares to TSV, JSON and Parquet.

CSV ACSV B

Result

Runs entirely in your browser — nothing you enter is uploaded or stored.

Ask about this tool on

Find Common Rows

Free tool to find rows that appear in both CSV files (the intersection), in your browser.

All processing happens in your browser — your files never leave the page, which you can confirm from the Network panel or our privacy policy.

Frequently asked questions

How do I use the Find Common Rows?

Paste your two CSV files (A and B) and the result appears below. Everything runs in your browser.

Is my data uploaded anywhere?

No. This tool runs entirely in your browser — your CSV files are never sent to a server.

Is the Find Common Rows free?

Yes — completely free, no sign-up and no limits.

Find Common Rows

Frequently asked questions

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