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ToolSuite
CSV & Spreadsheet Tools

CSV Find and Replace

Replace text across the whole file or in named columns only, with optional regular expressions.

Processed in your browser

Your result will appear here as soon as you add some input.

How to use it

  1. 1Paste your CSV, or open the file in a text editor and copy it in.
  2. 2Adjust the delimiter and header options if the preview looks wrong.
  3. 3Adjust the options if you need something other than the defaults.
  4. 4Download the result, or copy it straight back into your spreadsheet.

About the CSV Find and Replace

Restricting the replacement to named columns is the difference between fixing a country code and corrupting every other field that happens to contain the same two letters.

With regular expressions off, the search text is matched literally, so no escaping is needed for dots, brackets or slashes.

Questions people ask

Is your data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your data never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.

Is it free, and do I need an account?

Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.