Find and Replace in CSV, free in your browser

Replace literal text in every CSV or TSV cell, or limit changes to a selected column. Matching ignores letter case.

How to find and replace CSV values

1. Choose a CSV or TSV file.
2. Enter the text to find and its replacement; choose all columns or one column.
3. Preview the result and download the updated CSV.

Limits & good to know

• CSV and TSV files up to 50 MB are processed on your device.
• Replacements are literal text and do not interpret regular expressions.
• Column names are not changed; use the column selector to target data cells.

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.

Can I replace text in just one column?

Yes. Choose that column in Search in before processing.

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.