Text Anonymizer

Custom phrases match exactly, including case. Review the changes: these rules cannot find every kind of personal information. CSV rows and columns are preserved.

Replace matching email addresses, selected phone number formats, and your own exact words or phrases in text, TXT or CSV files. Compare the beginning of each source and result before downloading.

Files stay in your browser. Batch downloads include complete processed files, and CSV output keeps the original rows and columns. Review the result before sharing sensitive material.

Text Anonymizer FAQ

Does this find every type of personal information?

No. This tool applies the rules you select and exact custom phrases. Names, addresses, unusual contact formats and other personal information may remain. It does not provide a guarantee of complete anonymization.

Which phone numbers can be replaced?

Choose one rule: China mobile numbers, US/Canada ten-digit numbering, or UK mobile numbers. Country prefixes and common separators are recognized. Other regions and phone formats are not automatically inferred.

What happens to CSV files?

Each cell is processed separately, then written back with CSV quoting. Rows, columns and embedded line breaks are preserved. Custom phrases cannot match across separate cells. Downloads include the full result; previews show only the first 3,000 characters.

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