CSV PII Masker

Mask emails, phone numbers, and IP addresses in CSV files. Redact or hash sensitive data instantly.

100% client-side processing - your files never leave your browser

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Frequently Asked Questions

Common questions about this tool.

Then send the result straight to Google Sheets

Run your file through the tool above. When it is ready we can write it into Google Sheets from our servers, so the rows land as one import instead of a frozen tab, however many there are.