ConvertCSV

Clean Tools

Replace CSV Text

Find and replace text across every CSV cell. Runs locally in your browser — nothing is uploaded for processing.

Input

Paste CSV or upload a file

Options

Output Preview

Result

Run the tool to preview output here.

Replace CSV Text

Replace CSV Text finds an exact substring in every cell and replaces it. Matching is case-sensitive.

Everything runs in your browser. File contents are not uploaded to a server for this tool.

Key features

  • Client-side processing
  • Copy or download results
  • Works with paste or upload where applicable

About the CSV to CSV format

Headers are not rewritten — only data cells change.

Common use cases

  • Renaming a product code
  • Fixing a typo across thousands of rows

How to use this tool

  1. Provide input (CSV, schema, or ciphertext).
  2. Set options if shown, then run the tool.
  3. Copy or download the result.

Tips for best results

  • For regex needs, export to a script; this tool is exact-string replace.
  • Preview output before sharing or importing.

Common pitfalls

Keep a copy of the original file — transforms can be hard to reverse.

Frequently asked questions

Is my data uploaded?

No. Processing stays in your browser tab.

For more background on data formats and conversion workflows, read our format guides or browse the converter blog for step-by-step walkthroughs linked to each tool.